diff --git a/.gitattributes b/.gitattributes
index 429f8cde0..cd3fde954 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -5,3 +5,4 @@ configure.ac eol=lf
 *.in eol=lf
 *.am eol=lf
 *.sh eol=lf
+*.[ch] whitespace=tab-in-indent