diff --git a/test/test_loopy.py b/test/test_loopy.py
index cb0be2282867ed941cbbe4f4aad8ffc5b249a1eb..af92816700bfef13aa0de6ef143721666485fd84 100644
--- a/test/test_loopy.py
+++ b/test/test_loopy.py
@@ -177,7 +177,7 @@ def test_simple_side_effect(ctx_factory):
     ctx = ctx_factory()
 
     knl = lp.make_kernel(
-            "{[i,j]: 0<=i,j<100}",
+            "{[i]: 0<=i<100}",
             """
                 a[i] = a[i] + 1
                 """,