diff --git a/test.sh b/test.sh
index bf1bd95..96963f0 100755
--- a/test.sh
+++ b/test.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 
-for OPT in s 0; do
+for OPT in s 0 1 2 3; do
 	echo -- "-O$OPT" && gcc f.c -O$OPT -o f && ./f
 done