Update nn_ops.py
diff --git a/tensorflow/python/ops/nn_ops.py b/tensorflow/python/ops/nn_ops.py
index 6df6c74..bf28593 100644
--- a/tensorflow/python/ops/nn_ops.py
+++ b/tensorflow/python/ops/nn_ops.py
@@ -72,7 +72,7 @@
   if value is None:
     return [1] * (n + 2)
 
-  # `value` should not 0
+  # `value` should not be 0
   if value == 0:
     raise FloatingPointError("{} should not be 0".format(name))