diff --git a/bytebeat_compiler.py b/bytebeat_compiler.py
index 8b3f017..59d8eb3 100644
--- a/bytebeat_compiler.py
+++ b/bytebeat_compiler.py
@@ -23,7 +23,7 @@ PATHS["output"] = path_join(PATHS["build_dir"], PATHS["output"])
 # Default parameters
 DEFAULT_PARAMETERS = {
 	"CC": "gcc",
-	"CC_FLAGS": "-Os -Wall -Wextra -Wpedantic",
+	"CC_FLAGS": "-Ofast -Wall -Wextra -Wpedantic",
 	"INPUT_FILE": PATHS["substitute"],
 	"OUTPUT_FILE": PATHS["output"]
 }