diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c720278..ad0bdec5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 - Improved variable expansion runtime [#704](https://github.com/yonaskolb/XcodeGen/pull/704) @rcari
 - Fixed missing headers for static framework targets [#705](https://github.com/yonaskolb/XcodeGen/pull/705) @wag-miles
 - Using more file types from XcodeProj for PBXFileReferences resulting in less project diffs [#715](https://github.com/yonaskolb/XcodeGen/pull/715) @yonaskolb
+- Fixed localized *.intentdefinition have to be added to build source phases [#720](https://github.com/yonaskolb/XcodeGen/pull/720) @giginet
 
 #### Changed
 - Deprecated `$old_form` variables in favor of `${new_form}` variables [#704](https://github.com/yonaskolb/XcodeGen/pull/704) @rcari
@@ -36,7 +37,7 @@
 - Add base localisation by default even if no base localised files were found. Fixes warning in Xcode 11 [#685](https://github.com/yonaskolb/XcodeGen/pull/685) @yonaskolb
 - Don't generate CFBundleExecutable in default generated Info.plist for `bundle` target types [#689](https://github.com/yonaskolb/XcodeGen/pull/689) @FranzBusch
 - Fixed resolving relative paths with custom project destination [#681](https://github.com/yonaskolb/XcodeGen/pull/681) @giginet
-- Fixed resolving relative paths for Info.plist [#683](https://github.com/yonaskolb/XcodeGen/pull/683)
+- Fixed resolving relative paths for Info.plist [#683](https://github.com/yonaskolb/XcodeGen/pull/683) @giginet
 - Fixed macOS unit test target TEST_HOST [#696](https://github.com/yonaskolb/XcodeGen/pull/696) @mjarvis
 
 #### Internal
diff --git a/Sources/XcodeGenKit/SourceGenerator.swift b/Sources/XcodeGenKit/SourceGenerator.swift
index a041fd42..b7659d2e 100644
--- a/Sources/XcodeGenKit/SourceGenerator.swift
+++ b/Sources/XcodeGenKit/SourceGenerator.swift
@@ -81,8 +81,8 @@ class SourceGenerator {
         _ = try getSourceFiles(targetType: .none, targetSource: TargetSource(path: path), path: fullPath)
     }
 
-    func generateSourceFile(targetType: PBXProductType, targetSource: TargetSource, path: Path, buildPhase: TargetSource.BuildPhase? = nil) -> SourceFile {
-        let fileReference = fileReferencesByPath[path.string.lowercased()]!
+    func generateSourceFile(targetType: PBXProductType, targetSource: TargetSource, path: Path, buildPhase: TargetSource.BuildPhase? = nil, fileRefenrece: PBXFileElement? = nil) -> SourceFile {
+        let fileReference = fileRefenrece ?? fileReferencesByPath[path.string.lowercased()]!
         var settings: [String: Any] = [:]
         var attributes: [String] = targetSource.attributes
         var chosenBuildPhase: TargetSource.BuildPhase?
@@ -452,12 +452,10 @@ class SourceGenerator {
                 groupChildren.append(variantGroup)
                 baseLocalisationVariantGroups.append(variantGroup)
 
-                let sourceFile = SourceFile(
-                    path: filePath,
-                    fileReference: variantGroup,
-                    buildFile: PBXBuildFile(file: variantGroup),
-                    buildPhase: .resources
-                )
+                let sourceFile = generateSourceFile(targetType: targetType,
+                                                    targetSource: targetSource,
+                                                    path: filePath,
+                                                    fileRefenrece: variantGroup)
                 allSourceFiles.append(sourceFile)
             }
         }
@@ -491,12 +489,10 @@ class SourceGenerator {
                     }
                 } else {
                     // add SourceFile to group if there is no Base.lproj directory
-                    let sourceFile = SourceFile(
-                        path: filePath,
-                        fileReference: fileReference,
-                        buildFile: PBXBuildFile(file: fileReference),
-                        buildPhase: .resources
-                    )
+                    let sourceFile = generateSourceFile(targetType: targetType,
+                                                        targetSource: targetSource,
+                                                        path: filePath,
+                                                        fileRefenrece: fileReference)
                     allSourceFiles.append(sourceFile)
                     groupChildren.append(fileReference)
                 }
diff --git a/Tests/XcodeGenKitTests/SourceGeneratorTests.swift b/Tests/XcodeGenKitTests/SourceGeneratorTests.swift
index 13fdd01d..1e903ab3 100644
--- a/Tests/XcodeGenKitTests/SourceGeneratorTests.swift
+++ b/Tests/XcodeGenKitTests/SourceGeneratorTests.swift
@@ -833,6 +833,64 @@ class SourceGeneratorTests: XCTestCase {
                 try pbxProj.expectFileMissing(paths: ["Sources", "group2", "file.swift"])
                 try pbxProj.expectFileMissing(paths: ["Sources", "group", "file.swift"])
             }
+
+            $0.describe("Localized sources") {
+                $0.context("With localized sources") {
+                    $0.it("*.intentdefinition should be added to source phase") {
+                        let directories = """
+                        Sources:
+                            Base.lproj:
+                                - Intents.intentdefinition
+                            en.lproj:
+                                - Intents.strings
+                            ja.lproj:
+                                - Intents.strings
+                        """
+                        try createDirectories(directories)
+                        let directoryPath = Path("TestDirectory")
+
+                        let target = Target(name: "IntentDefinitions",
+                                            type: .application,
+                                            platform: .iOS,
+                                            sources: [TargetSource(path: "Sources")])
+                        let project = Project(basePath: directoryPath,
+                                              name: "IntendDefinitions",
+                                              targets: [target])
+                        let pbxProj = try project.generatePbxProj()
+                        let sourceBuildPhase = try unwrap(pbxProj.buildPhases.first { $0.buildPhase == .sources })
+                        try expect(sourceBuildPhase.files?.compactMap { $0.file?.nameOrPath }) == ["Intents.intentdefinition"]
+                    }
+                }
+
+                $0.context("With localized sources with buildPhase") {
+                    $0.it("*.intentdefinition with buildPhase should be added to resource phase") {
+                        let directories = """
+                        Sources:
+                            Base.lproj:
+                                - Intents.intentdefinition
+                            en.lproj:
+                                - Intents.strings
+                            ja.lproj:
+                                - Intents.strings
+                        """
+                        try createDirectories(directories)
+                        let directoryPath = Path("TestDirectory")
+
+                        let target = Target(name: "IntentDefinitions",
+                                            type: .application,
+                                            platform: .iOS,
+                                            sources: [TargetSource(path: "Sources", buildPhase: .resources)])
+                        let project = Project(basePath: directoryPath,
+                                              name: "IntendDefinitions",
+                                              targets: [target])
+                        let pbxProj = try project.generatePbxProj()
+                        let sourceBuildPhase = try unwrap(pbxProj.buildPhases.first { $0.buildPhase == .sources })
+                        let resourcesBuildPhase = try unwrap(pbxProj.buildPhases.first { $0.buildPhase == .resources })
+                        try expect(sourceBuildPhase.files) == []
+                        try expect(resourcesBuildPhase.files?.compactMap { $0.file?.nameOrPath }) == ["Intents.intentdefinition"]
+                    }
+                }
+            }
         }
     }
 }