diff --git a/makefile b/makefile
index e7a26384c15..4e9891074bb 100644
--- a/makefile
+++ b/makefile
@@ -504,7 +504,7 @@ else
 ifeq ($(OSD),osdmini)
 DEFS += -DOSD_MINI
 else
-$(warning Please add -DOSD_[SDL|WINDOWS|MINI] in $(OSD).mk)
+$(warning Please add -DOSD_[SDL|WINDOWS|MINI] in $(OSD).mak)
 endif
 endif
 endif