diff --git a/SWCompression.podspec b/SWCompression.podspec
index 8ff8876c..f088cead 100644
--- a/SWCompression.podspec
+++ b/SWCompression.podspec
@@ -29,12 +29,12 @@ Pod::Spec.new do |s|
   # It should not be included directly in Podfile.
   s.subspec 'Common' do |sp|
     sp.public_header_files = 'Sources/Service/SWCompression.h'
-    sp.source_files  = "Sources/{CheckSums.swift,DataWithPointer.swift,Extensions.swift,HuffmanTree.swift,Protocols.swift,Service/*.swift,Service/*.h}"
+    sp.source_files  = "Sources/{CheckSums.swift,DataWithPointer.swift,Extensions.swift,Protocols.swift,Service/*.swift,Service/*.h}"
   end
 
   s.subspec 'Deflate' do |sp|
     sp.dependency 'SWCompression/Common'
-    sp.source_files = 'Sources/Deflate.swift'
+    sp.source_files = 'Sources/{Deflate.swift,HuffmanTree.swift}'
   end
 
   s.subspec 'GZip' do |sp|
@@ -51,7 +51,7 @@ Pod::Spec.new do |s|
 
   s.subspec 'BZip2' do |sp|
     sp.dependency 'SWCompression/Common'
-    sp.source_files = 'Sources/BZip2.swift'
+    sp.source_files = 'Sources/{BZip2.swift,HuffmanTree.swift}'
   end
 
   s.subspec 'LZMA' do |sp|
diff --git a/SWCompression.xcodeproj/project.pbxproj b/SWCompression.xcodeproj/project.pbxproj
index 3bda26b5..a8b62b14 100644
--- a/SWCompression.xcodeproj/project.pbxproj
+++ b/SWCompression.xcodeproj/project.pbxproj
@@ -307,7 +307,6 @@
 				06E234811E06A6C200F18798 /* CheckSums.swift */,
 				063DF1051DE1F07800F38082 /* DataWithPointer.swift */,
 				063DF1061DE1F07800F38082 /* Extensions.swift */,
-				063DF1081DE1F07800F38082 /* HuffmanTree.swift */,
 				063DF1091DE1F07800F38082 /* Protocols.swift */,
 			);
 			path = Common;
@@ -351,6 +350,7 @@
 			children = (
 				06A3931F1DE06FFE00182E12 /* Common */,
 				069D0FFE1E0D6CF200D8AA87 /* LZMA */,
+				063DF1081DE1F07800F38082 /* HuffmanTree.swift */,
 				06E2346B1E068E9600F18798 /* XZArchive.swift */,
 				063364E21DC52979007E313F /* GzipArchive.swift */,
 				064492581DC606D400F10981 /* ZlibArchive.swift */,