diff --git a/Makefile b/Makefile
index d783ee1c6f..2efb4386e4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,6 @@
 ifeq (Windows_NT,$(OS))
   WIN=1
 endif
-ifeq ($(findstring msys,$(shell sh --version 2>nul)),msys)
-  WIN=1
-endif
 
 ifeq (1,$(WIN))
 include Makefile.mgw