diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c40543c..ec317f51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## Master
 
+* Fix for app launch crash
+  [orta](https://github.com/orta)
+  [#323](https://github.com/CocoaPods/CocoaPods-app/issue/323)
+
 * Pod version completion
   [flufff42](https://github.com/flufff42)
   [#313](https://github.com/CocoaPods/CocoaPods-app/pull/313)
diff --git a/app/CPReflectionService/RBObject+CocoaPods.rb b/app/CPReflectionService/RBObject+CocoaPods.rb
index d5232012..1ea4c387 100644
--- a/app/CPReflectionService/RBObject+CocoaPods.rb
+++ b/app/CPReflectionService/RBObject+CocoaPods.rb
@@ -88,7 +88,7 @@ def self.pod_sources
       sources_manager.all.map { |source|
         { source.name => source.url }
 
-      }.reduce &:merge
+      }.reduce(&:merge).select { |key, value| key.is_a?(String) && value.is_a?(String) }
     end
 
     def self.lockfile_version(path)