diff --git a/.gitattributes b/.gitattributes
index 1ff0c423042b..aed94030e6e8 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -61,3 +61,5 @@
 #*.PDF   diff=astextplain
 #*.rtf   diff=astextplain
 #*.RTF   diff=astextplain
+
+*.h linguist-language=C++