diff --git a/makefile b/makefile
index 7348046..5d0ecbd 100644
--- a/makefile
+++ b/makefile
@@ -3,17 +3,6 @@
 # License: http://www.opensource.org/licenses/BSD-2-Clause
 #
 
-UNAME := $(shell uname)
-ifeq ($(UNAME),$(filter $(UNAME),Linux Darwin))
-ifeq ($(UNAME),$(filter $(UNAME),Darwin))
-OS=darwin
-else
-OS=linux
-endif
-else
-OS=windows
-endif
-
 GENIE=../bx/tools/bin/$(OS)/genie
 
 all: