diff --git a/docs/examples/demo_sources_plugin.ipynb b/docs/examples/demo_sources_plugin.ipynb
index 41ed3bf5..ade69072 100644
--- a/docs/examples/demo_sources_plugin.ipynb
+++ b/docs/examples/demo_sources_plugin.ipynb
@@ -15,7 +15,7 @@
    "source": [
     "This example demonstrates the usage of [sources plugins](../plugins/sources_plugin.rst) in earthkit-data.\n",
     "\n",
-    "We will use the **earthkit-data-demo-source** plugin, so it has to be installed to make the exercise work. "
+    "We will use the **earthkit-data-demo-source** plugin, which allows accessing data from a SQL database. It has to be installed to make the exercise work. "
    ]
   },
   {