diff --git a/Makefile b/Makefile
index 89e3480..07d3c87 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ objects= stack.o method_dispatcher/method_dispatcher.o interpreter/core_methods.
 
 all: $(objects) test
 
-CFLAG= -c -O -o
+CFLAG= -c -DDEBUG -O -o
 
 %.o: %.c
 	$(CC) $(CFLAG) $@ $<