diff --git a/SwipeMenuViewController.podspec b/SwipeMenuViewController.podspec
index 4b267ae..d4c670a 100644
--- a/SwipeMenuViewController.podspec
+++ b/SwipeMenuViewController.podspec
@@ -91,7 +91,7 @@ Pod::Spec.new do |s|
   #  Not including the public_header_files will make all headers public.
   #
 
-  s.source_files  = 'Sources/**/*'
+  s.source_files  = 'Sources/**/*.{swift}'
   # s.exclude_files = "Classes/Exclude"
 
   # s.public_header_files = 'Sources/**/*.h'