diff --git a/fuzz/makefile b/fuzz/makefile
index 0017842..e702e38 100644
--- a/fuzz/makefile
+++ b/fuzz/makefile
@@ -1,8 +1,11 @@
 BIN=ssp_fuzz
+OPT_BIN=opt_ssp_fuzz
 SRC=ssp_fuzz.cpp
 
 all:
 	${CXX} ${SRC} -fsanitize=fuzzer -std=c++17 -o ${BIN}
+	${CXX} ${SRC} -fsanitize=fuzzer -std=c++17 -O2 -o ${OPT_BIN}
 
 run:
-	./${BIN} -max_total_time=600
+	./${BIN} -max_total_time=300
+	./${OPT_BIN} -max_total_time=300