diff --git a/setup.py b/setup.py
index d677cd7765..dc44f33043 100644
--- a/setup.py
+++ b/setup.py
@@ -84,7 +84,7 @@ def extra(self):
             compiler_directives['linetrace'] = True
         # Set CFLAG to all optimizations (-O3)
         # Any additional CFLAGS will be appended. Only the last optimization flag will have effect
-        os.environ['CFLAGS'] = '-O3 ' + os.environ.get('CFLAGS', '')
+        os.environ['CFLAGS'] = '-O3 -g0' + os.environ.get('CFLAGS', '')
         ext_modules = cythonize(
             'pydantic/*.py',
             exclude=['pydantic/generics.py'],