diff --git a/src/rosdep2/sources_list.py b/src/rosdep2/sources_list.py
index b0de6d8b10..2542875c91 100644
--- a/src/rosdep2/sources_list.py
+++ b/src/rosdep2/sources_list.py
@@ -545,11 +545,11 @@ def get_source(source):
     This closure uses variables from parent scope
     """
     def get_additional_sources(dist_name):
+        distribution = get_index().distributions[dist_name]
         if dist_name != ros_distro:
             if ros_distro is not None:
                 print('Skip distro "%s" different from requested "%s"' % (dist_name, ros_distro))
                 return
-        distribution = get_index().distributions[dist_name]
             if skip_eol_distros:
                 if distribution.get('distribution_status') == 'end-of-life':
                     print('Skip end-of-life distro "%s"' % dist_name)