diff --git a/build_ext.py b/build_ext.py
index 3669162..4e764e4 100644
--- a/build_ext.py
+++ b/build_ext.py
@@ -17,6 +17,7 @@
         join("src", "kasa_crypt", "_crypt_impl.pyx"),
     ],
     language="c",
+    extra_compile_args=["-O3", "-g0"],
 )