diff --git a/core/main.mk b/core/main.mk
index 4b3a941..fbe6d24 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -31,10 +31,10 @@
 #endif
 
 # check for broken versions of make
-ifeq (0,$(shell expr $$(echo $(MAKE_VERSION) | sed "s/[^0-9\.].*//") \>= 3.81))
+ifeq (0,$(shell expr $$(echo $(MAKE_VERSION) | sed "s/[^0-9\.].*//") = 3.81))
 $(warning ********************************************************************************)
 $(warning *  You are using version $(MAKE_VERSION) of make.)
-$(warning *  You must upgrade to version 3.81 or greater.)
+$(warning *  Android can only be built by version 3.81.)
 $(warning *  see http://source.android.com/source/download.html)
 $(warning ********************************************************************************)
 $(error stopping)