diff --git a/docs/notebooks/spectral.ipynb b/docs/notebooks/spectral.ipynb
index 83ed912..44b1381 100644
--- a/docs/notebooks/spectral.ipynb
+++ b/docs/notebooks/spectral.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Spectral maps\n",
+    "# Doppler maps\n",
     "\n",
     "*spotter* can be used to model time series spectra of non-uniform stars. In this tutorial we showcase some of these features.\n",
     "\n",