diff --git a/GNUmakefile b/GNUmakefile
index 93e2164dee8..9a5164cd722 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -142,6 +142,10 @@ Information
 endef
 # HELP_TEXT (end)
 
+# This makefile is not meant for Windows
+ifeq ($(OS),Windows_NT)
+    $(error On Windows, use "cmd //c make.bat" instead of "make")
+endif
 
 # System Vars
 OS:=$(shell uname -s)