diff --git a/Makefile b/Makefile
index 0a9d302..3032cd8 100644
--- a/Makefile
+++ b/Makefile
@@ -3,9 +3,10 @@ calling_from_make:
 
 UNAME := $(shell uname)
 
-CFLAGS ?= -Wall -Werror -Wno-unused-parameter -pedantic -std=c99 -O2 -fsanitize=undefined
+CFLAGS ?= -Wall -Werror -Wno-unused-parameter -pedantic -std=c99 -O2
 
 ifeq ($(UNAME), Darwin)
+	CFLAGS += -fsanitize=undefined
 	TARGET_CFLAGS ?= -fPIC -undefined dynamic_lookup -dynamiclib -Wextra
 endif