diff --git a/Makefile b/Makefile
index f3174b7..82f1b8b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-CFLAGS=-Wall -O3 -g
+CFLAGS=-Wall -g
 
 OBJS=main.o map.o agent.o connection.o