diff --git a/_toc.yml b/_toc.yml
index be7a051..a8cee10 100644
--- a/_toc.yml
+++ b/_toc.yml
@@ -4,7 +4,7 @@
 - part: "Data Retrieval and Processing"
   chapters:
   - file: "sources/01 Overview.md"
-  - file: "sources/01a Download from Scihub.ipynb"
+  - file: "sources/01a Download Process.ipynb"
   - file: "sources/01b Plot downloaded products.ipynb"
   - file: "sources/01c Coverage analysis.ipynb"
   - file: "sources/01d Brandenburg mosaic.ipynb"
diff --git a/sources/01a Download from Scihub.ipynb b/sources/01a Download Process.ipynb
similarity index 100%
rename from sources/01a Download from Scihub.ipynb
rename to sources/01a Download Process.ipynb
diff --git a/sources/02e Spectral Indices.ipynb b/sources/02e Spectral Indices.ipynb
index c540010..545b4d1 100644
--- a/sources/02e Spectral Indices.ipynb	
+++ b/sources/02e Spectral Indices.ipynb	
@@ -20,7 +20,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Before running this notebook the files have to be downloaded. See [01a Download from Scihub.ipynb](01a Download from Scihub.ipynb) for further information.\n",
+    "Before running this notebook the files have to be downloaded. See [01a Download Process.ipynb](01a Download Process.ipynb) for further information.\n",
     "\n",
     "The calculation in this notebook depends on three parameters:\n",
     "\n",