diff --git a/doc/source/conf.py b/doc/source/conf.py
index 5ebdeb0..b9006c3 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -66,10 +66,13 @@ author = 'Enrico Faulhaber, Markus Zolliker'
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
-# The full version, including alpha/beta/rc tags.
-release = get_version()
-# The short X.Y version.
-version = release.split('-')[0]
+try:
+    # The full version, including alpha/beta/rc tags.
+    release = get_version()
+    # The short X.Y version.
+    version = release.split('-')[0]
+except ValueError:
+    pass
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.