diff --git a/PanModal.podspec b/PanModal.podspec
index ca6f7fd..7d3ebe5 100644
--- a/PanModal.podspec
+++ b/PanModal.podspec
@@ -25,5 +25,5 @@ Pod::Spec.new do |s|
   s.social_media_url = 'https://twitter.com/slackhq'
   s.ios.deployment_target = '10.0'
   s.swift_version = '4.2'
-  s.source_files = 'PanModal/**/*'
+  s.source_files = 'PanModal/**/*.{swift,h,m}'
 end