diff --git a/.emacs b/.emacs
index 21920e3..dad8559 100644
--- a/.emacs
+++ b/.emacs
@@ -660,6 +660,7 @@
 								(concat "-imp." ext)
 								(concat "-impl." ext)
 								".cpp"
+								".c"
 								)))
 					)
 				(when (member ext '("c" "cc" "cpp"))