diff --git a/setup.py b/setup.py
index c327b36..07832f3 100755
--- a/setup.py
+++ b/setup.py
@@ -63,7 +63,7 @@
 if platform.system() == "Windows":
     extra_compile_args = ["/O2"]
 else:
-    extra_compile_args = ["-w", "-O2", "-fPIC"]
+    extra_compile_args = ["-w", "-O2", "-fPIC", "-Wno-narrowing"]
 
 module = setuptools.Extension(
     # First arg (name) is the full name of the extension, including