diff --git a/Lib/ctypes/macholib/dyld.py b/Lib/ctypes/macholib/dyld.py
index 2bd43c3..dc7052e 100644
--- a/Lib/ctypes/macholib/dyld.py
+++ b/Lib/ctypes/macholib/dyld.py
@@ -124,7 +124,7 @@
             ), env):
         if os.path.isfile(path):
             return path
-    raise ValueError, "dylib %s could not be found" % (name,)
+    raise ValueError("dylib %s could not be found" % (name,))
 
 def framework_find(fn, executable_path=None, env=None):
     """