diff --git a/loopy/check.py b/loopy/check.py
index bd9609d1d4b3f2865a86eeffc5f4cc0c1f98eeab..a71bad222d156df95143276eb0d3bde22dc39260 100644
--- a/loopy/check.py
+++ b/loopy/check.py
@@ -406,7 +406,8 @@ def check_that_shapes_and_strides_are_arguments(kernel):
 
             for dim_tag in arg.dim_tags:
                 if isinstance(dim_tag, FixedStrideArrayDimTag):
-                    assert dim_tag.stride is not lp.auto
+                    if dim_tag.stride is lp.auto:
+                        continue
 
                     deps = get_dependencies(dim_tag.stride)
                     if not deps <= integer_arg_names:
diff --git a/loopy/compiled.py b/loopy/compiled.py
index 28026b8610173c343f52ac1d4b78f764d4cb94a6..5fb7154d7b7b60f438d6dc6e411f4bd532e7944b 100644
--- a/loopy/compiled.py
+++ b/loopy/compiled.py
@@ -668,6 +668,7 @@ class CompiledKernel:
             for name in iflags.split(","):
                 iflags_args[name] = True
             iflags = InvocationFlags(**iflags_args)
+            print iflags_args
         elif not isinstance(iflags, InvocationFlags):
             iflags = InvocationFlags(**iflags)
 
diff --git a/test/test_loopy.py b/test/test_loopy.py
index 0efcaab050d6ce0fc2b6eb95c0a52517b82f9b64..f58c93787b9192087ccc8613bba4e50b53966b51 100644
--- a/test/test_loopy.py
+++ b/test/test_loopy.py
@@ -1213,6 +1213,8 @@ def test_dependent_domain_insn_iname_finding(ctx_factory):
             [
                 lp.GlobalArg("box_source_starts,box_source_counts_nonchild",
                     None, shape=None),
+                lp.GlobalArg("strengths",
+                    None, shape="nsources"),
                 "..."])
 
     print knl
@@ -1224,6 +1226,7 @@ def test_dependent_domain_insn_iname_finding(ctx_factory):
                 box_source_starts=np.int32,
                 box_source_counts_nonchild=np.int32,
                 strengths=np.float64,
+                nsources=np.int32,
                 ))