diff --git a/lib/xcake/path_classifier.rb b/lib/xcake/path_classifier.rb
index f84db1e8..f2b340c2 100644
--- a/lib/xcake/path_classifier.rb
+++ b/lib/xcake/path_classifier.rb
@@ -7,7 +7,7 @@ class PathClassifier
     EXTENSION_MAPPINGS = {
       PBXFrameworksBuildPhase: %w(.a .dylib .so .framework).freeze,
       PBXHeadersBuildPhase: %w(.h .hpp).freeze,
-      PBXSourcesBuildPhase: %w(.c .m .mm .cpp .swift .xcdatamodeld .java).freeze,
+      PBXSourcesBuildPhase: %w(.c .m .mm .cpp .cc .swift .xcdatamodeld .java).freeze,
       PBXResourcesBuildPhase: %w(.xcassets).freeze
     }.freeze