diff --git a/src/services/services.ts b/src/services/services.ts
index 1a952491365..ade5cc0b1bf 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -2063,9 +2063,6 @@ namespace ts {
         sourceMapText?: string;
     }
 
-    // Matches the beginning of a triple slash directive
-    const tripleSlashDirectivePrefixRegex = /^\/\/\/\s*</;
-
     /**
      * Matches a triple slash reference directive with an incomplete string literal for its path. Used
      * to determine if the caret is currently within the string literal and capture the literal fragment
@@ -2940,15 +2937,6 @@ namespace ts {
         }
     }
 
-    function isInReferenceComment(sourceFile: SourceFile, position: number): boolean {
-        return isInCommentHelper(sourceFile, position, isReferenceComment);
-
-        function isReferenceComment(c: CommentRange): boolean {
-            const commentText = sourceFile.text.substring(c.pos, c.end);
-            return tripleSlashDirectivePrefixRegex.test(commentText);
-        }
-    }
-
     const enum SemanticMeaning {
         None = 0x0,
         Value = 0x1,
@@ -6914,15 +6902,6 @@ namespace ts {
 
                     return result[index];
                 }
-
-                function isInNonReferenceComment(sourceFile: SourceFile, position: number): boolean {
-                    return isInCommentHelper(sourceFile, position, isNonReferenceComment);
-
-                    function isNonReferenceComment(c: CommentRange): boolean {
-                        const commentText = sourceFile.text.substring(c.pos, c.end);
-                        return !tripleSlashDirectivePrefixRegex.test(commentText);
-                    }
-                }
             }
 
             function getReferencesForSuperKeyword(superKeyword: Node): ReferencedSymbol[] {
diff --git a/src/services/utilities.ts b/src/services/utilities.ts
index d14b3b8efef..e83c5f4ca99 100644
--- a/src/services/utilities.ts
+++ b/src/services/utilities.ts
@@ -1,6 +1,9 @@
 // These utilities are common to multiple language service features.
 /* @internal */
 namespace ts {
+    // Matches the beginning of a triple slash directive
+    const tripleSlashDirectivePrefixRegex = /^\/\/\/\s*</;
+
     export interface ListItemInfo {
         listItemIndex: number;
         list: Node;
@@ -704,6 +707,29 @@ namespace ts {
 
         return false;
     }
+
+    export function hasTrailingDirectorySeparator(path: string) {
+        const lastCharacter = path.charAt(path.length - 1);
+        return lastCharacter === "/" || lastCharacter === "\\";
+    }
+
+    export function isInReferenceComment(sourceFile: SourceFile, position: number): boolean {
+        return isInCommentHelper(sourceFile, position, isReferenceComment);
+
+        function isReferenceComment(c: CommentRange): boolean {
+            const commentText = sourceFile.text.substring(c.pos, c.end);
+            return tripleSlashDirectivePrefixRegex.test(commentText);
+        }
+    }
+
+    export function isInNonReferenceComment(sourceFile: SourceFile, position: number): boolean {
+        return isInCommentHelper(sourceFile, position, isNonReferenceComment);
+
+        function isNonReferenceComment(c: CommentRange): boolean {
+            const commentText = sourceFile.text.substring(c.pos, c.end);
+            return !tripleSlashDirectivePrefixRegex.test(commentText);
+        }
+    }
 }
 
 // Display-part writer helpers
@@ -925,9 +951,4 @@ namespace ts {
         }
         return ensureScriptKind(fileName, scriptKind);
     }
-
-    export function hasTrailingDirectorySeparator(path: string) {
-        const lastCharacter = path.charAt(path.length - 1);
-        return lastCharacter === "/" || lastCharacter === "\\";
-    }
 }
\ No newline at end of file