diff --git a/build.sh b/build.sh
index 3ce212e..fd5d22b 100755
--- a/build.sh
+++ b/build.sh
@@ -1,3 +1,3 @@
 rm bareiron
-gcc src/*.c -Iinclude -o bareiron
+gcc src/*.c -O3 -Iinclude -o bareiron
 ./bareiron