diff --git a/Notebooks/Chap18/18_2_1D_Diffusion_Model.ipynb b/Notebooks/Chap18/18_2_1D_Diffusion_Model.ipynb
index eb7f70a..a706a21 100644
--- a/Notebooks/Chap18/18_2_1D_Diffusion_Model.ipynb
+++ b/Notebooks/Chap18/18_2_1D_Diffusion_Model.ipynb
@@ -172,7 +172,7 @@
         "    # Find diffusion kernel for every x_train and draw samples\n",
         "    dk_mean, dk_std = diffusion_kernel(x_train, t, beta)\n",
         "    z_t = np.random.normal(size=x_train.shape) * dk_std + dk_mean\n",
-        "    # Find conditional diffusion distribution for each x_train, z pair and draw samlpes\n",
+        "    # Find conditional diffusion distribution for each x_train, z pair and draw samples\n",
         "    cd_mean, cd_std  = conditional_diffusion_distribution(x_train,z_t,t,beta)\n",
         "    if t == 1:\n",
         "      z_tminus1 = x_train\n",