diff --git a/C++.gitignore b/C++.gitignore
index 259148fa..2679aef2 100644
--- a/C++.gitignore
+++ b/C++.gitignore
@@ -11,6 +11,10 @@
 *.gch
 *.pch
 
+# Precompiled module files
+ModuleCache
+*.pcm
+
 # Compiled Dynamic libraries
 *.so
 *.dylib