diff --git a/test.h b/test.h
index c8cc564..40ecc1f 100644
--- a/test.h
+++ b/test.h
@@ -14,7 +14,9 @@
 #define COLOR_YELLOW "\x1b[33;1m"
 #define COLOR_RESET "\x1b[0m"
 
+#ifndef MAX_TEST_FUNCS
 #define MAX_TEST_FUNCS 256
+#endif
 
 typedef int (*test_func_t)();