diff --git a/setup.py b/setup.py
index <HASH>..<HASH> 100644
--- a/setup.py
+++ b/setup.py
@@ -59,7 +59,9 @@ if USE_MYPYC:
     from mypyc.build import mypycify
 
     opt_level = os.getenv("MYPYC_OPT_LEVEL", "3")
-    ext_modules = mypycify(mypyc_targets, opt_level=opt_level, verbose=True)
+    ext_modules = mypycify(
+        mypyc_targets, opt_level=opt_level, debug_level="0", verbose=True
+    )
 else:
     ext_modules = []
shrink binary wheels by removing debugging info