diff --git a/firmware/FILES b/firmware/FILES
index a7546c941b..735dcafca9 100644
--- a/firmware/FILES
+++ b/firmware/FILES
@@ -4,7 +4,7 @@ README
 FILES
 *.lds
 common/*.[chS]
-drivers/*.[ch]
+drivers/*.[chS]
 export/*.h
 include/*.h
 include/sys/*.h