diff --git a/Matlab.gitattributes b/Matlab.gitattributes
index 12d6a39..e338f94 100644
--- a/Matlab.gitattributes
+++ b/Matlab.gitattributes
@@ -4,8 +4,8 @@
 
 # Source files
 # ============
-*.m             text
-*.mu            text
+*.m             text diff=matlab
+*.mu            text diff=matlab
 
 # Caution: *.m also matches Mathematica packages.