diff --git a/tensorflow/python/framework/tensor_util_test.py b/tensorflow/python/framework/tensor_util_test.py
index fee78d50f69..ca47274e9a4 100644
--- a/tensorflow/python/framework/tensor_util_test.py
+++ b/tensorflow/python/framework/tensor_util_test.py
@@ -315,6 +315,7 @@ class TensorUtilTest(test.TestCase):
                   dtype=dtype)))
 
   def testIntMixedWithDimension(self):
+    # Github issue: 11974
     dtype = dtypes.int32
     nptype = np.int32
     t = tensor_util.make_tensor_proto([10, tensor_shape.Dimension(20), 30],