diff --git a/Makefile b/Makefile
index bb27775..b19fe3e 100644
--- a/Makefile
+++ b/Makefile
@@ -20,11 +20,11 @@ BUILD_IBIN = build/obj/bin
 DOXYGEN ?= doxygen
 
 ifeq ($(UNAME),Darwin)
-CC = clang
-CXX = clang++
+CC ?= clang
+CXX ?= clang++
 else
-CC = gcc
-CXX = g++
+CC ?= gcc
+CXX ?= g++
 endif
 LD = $(CC)
 LDXX = $(CXX)