diff --git a/loopy/kernel.py b/loopy/kernel.py
index 1e74ac2e7cbba91052156c128bcbb6b6a5fb2760..43d73114ec524f96b7e1a0f0f54204eac7bfcc6a 100644
--- a/loopy/kernel.py
+++ b/loopy/kernel.py
@@ -182,7 +182,8 @@ class GlobalArg(_ShapedArg):
 class ArrayArg(GlobalArg):
     def __init__(self, *args, **kwargs):
         from warnings import warn
-        warn("ArrayArg is a deprecated name of GlobalArg")
+        warn("ArrayArg is a deprecated name of GlobalArg", DeprecationWarning,
+                stacklevel=2)
         GlobalArg.__init__(self, *args, **kwargs)
 
 class ConstantArg(_ShapedArg):