diff --git a/docs/notebooks/dmri_covariance.ipynb b/docs/notebooks/dmri_covariance.ipynb
index d607f1ac..1eefa737 100644
--- a/docs/notebooks/dmri_covariance.ipynb
+++ b/docs/notebooks/dmri_covariance.ipynb
@@ -163,7 +163,6 @@
     "\n",
     "# Plot the exponential and spherical model covariances\n",
     "# Scale by a factor of 2 so that it matches Andersson2015's fig. 3.\n",
-    "# Scale by a factor of 2 so that it matches Andersson2015's fig. 3.\n",
     "plt.plot(theta_lin, cov_exp * 2, \"gray\", label=\"Exponential\")\n",
     "plt.plot(theta_lin, cov_sph * 2, \"k--\", label=\"Spherical\")\n",
     "\n",