diff --git a/session-1/session-1.ipynb b/session-1/session-1.ipynb
index 5440f274..93781d86 100644
--- a/session-1/session-1.ipynb
+++ b/session-1/session-1.ipynb
@@ -520,7 +520,7 @@
     "ksize = ...\n",
     "kernel = np.concatenate([utils.gabor(ksize)[:, :, np.newaxis] for i in range(3)], axis=2)\n",
     "                       \n",
-    "# Now make the kernels into the shape: [ksize, ksize, 3, 1]:\n",
+    "# Now make the kernels into the shape: [ksize, ksize, 3, 1]. Use numpy for reshaping Note:it will fail if you use tf reshape\n",
     "kernel_4d = ...\n",
     "assert(kernel_4d.shape == (ksize, ksize, 3, 1))"
    ]