diff --git a/Makefile b/Makefile
index 98d3b4d..ff1b937 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS=-Wall -Wno-strict-aliasing -std=gnu11 -g -I. -O0
+CFLAGS+=-Wall -Wno-strict-aliasing -std=gnu11 -I.
 OBJS=cpp.o debug.o dict.o gen.o lex.o vector.o parse.o buffer.o map.o \
      error.o path.o file.o set.o
 TESTS := $(patsubst %.c,%.bin,$(filter-out test/testmain.c,$(wildcard test/*.c)))
