diff --git a/C.gitignore b/C.gitignore
index bbf313b25987d0d61b1cea33a8e6188501e221ac..f805e810e5c6e087791506b4e721958de3574ae4 100644
--- a/C.gitignore
+++ b/C.gitignore
@@ -30,3 +30,4 @@
 
 # Debug files
 *.dSYM/
+*.su