diff --git a/notebooks/KrigingExample.ipynb b/notebooks/KrigingExample.ipynb
index 234b88c..96b2a5b 100644
--- a/notebooks/KrigingExample.ipynb
+++ b/notebooks/KrigingExample.ipynb
@@ -202,7 +202,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "The covariance modeling function function will return a spherical covariance model that takes a distance as input, and returns an covariance estimate. We've used the global variance of the porosity in `ZoneA.dat` as the sill."
+    "The covariance modeling function will return a spherical covariance model that takes a distance as input, and returns an covariance estimate. We've used the global variance of the porosity in `ZoneA.dat` as the sill."
    ]
   },
   {