diff --git a/.gitattributes b/.gitattributes
index a5dbbf8d..52329e8e 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,4 +1,4 @@
-*.CC linguist-language=HolyC
+*.ZC linguist-language=HolyC
 *.HH linguist-language=HolyC
 *.PRJ linguist-language=HolyC
 *.IN linguist-language=HolyC