diff --git a/test/test_rosdep_gbpdistro_support.py b/test/test_rosdep_gbpdistro_support.py
index 560bb7cf5..f25b640f0 100644
--- a/test/test_rosdep_gbpdistro_support.py
+++ b/test/test_rosdep_gbpdistro_support.py
@@ -52,7 +52,7 @@ def test_url_constants():
 def test_get_gbprepo_as_rosdep_data():
     from rosdep2.rosdistrohelper import get_index
     from rosdep2.gbpdistro_support import get_gbprepo_as_rosdep_data
-    distro = sorted(get_index().distributions.keys())[0]
+    distro = "melodic"
     data = get_gbprepo_as_rosdep_data(distro)
     for k in ['ros', 'catkin', 'genmsg']:
         assert k in data, data