diff --git a/Makefile b/Makefile
index eed43e4c..1b5fd786 100644
--- a/Makefile
+++ b/Makefile
@@ -45,6 +45,8 @@ COMPILER = rustc
 # For debugging:
 # COMPILER_FLAGS = -g
 
+UNAME=$(shell uname)
+
 ifeq ($(UNAME),Darwin)
   # If the user wasn't explicit, see if SDL2 library exists
   ifeq ("$(strip $(SDL_MODE))","")