diff --git a/Notebooks/Chap10/10_1_1D_Convolution.ipynb b/Notebooks/Chap10/10_1_1D_Convolution.ipynb
index e49cf5b..173fda0 100644
--- a/Notebooks/Chap10/10_1_1D_Convolution.ipynb
+++ b/Notebooks/Chap10/10_1_1D_Convolution.ipynb
@@ -341,7 +341,7 @@
         "# Compute matrix in figure 10.4 d\n",
         "def get_conv_mat_3_1_1_zp(n_out, omega):\n",
         "  omega_mat = np.zeros((n_out,n_out))\n",
-        "  # TODO Fill in this matix\n",
+        "  # TODO Fill in this matrix\n",
         "  # Replace this line:\n",
         "  omega_mat = omega_mat\n",
         "\n",
@@ -384,4 +384,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}