diff --git a/python3/vimspector/debug_session.py b/python3/vimspector/debug_session.py
index 6804211..b8cd5ca 100644
--- a/python3/vimspector/debug_session.py
+++ b/python3/vimspector/debug_session.py
@@ -94,7 +94,9 @@ class DebugSession( object ):
 
     adapters.update( database.get( 'adapters' ) or {} )
 
-    if len( configurations ) == 1:
+    if 'configuration' in launch_variables:
+      configuration_name = launch_variables.pop( 'configuration' )
+    elif len( configurations ) == 1:
       configuration_name = next( iter( configurations.keys() ) )
     else:
       configuration_name = utils.SelectFromList(
diff --git a/tests/language_python.test.vim b/tests/language_python.test.vim
index 5e9b845..5240fac 100644
--- a/tests/language_python.test.vim
+++ b/tests/language_python.test.vim
@@ -34,7 +34,7 @@ with patch( 'vimspector.utils.SelectFromList',
             return_value=None ) as p:
   with patch( 'vimspector.utils.AskForInput',
               return_value=None ) as p:
-    vim.eval( 'feedkeys( "\<F5>", "xt" )' )
+    vim.eval( 'vimspector#LaunchWithSettings( { "configuration": "run" } )' )
     vim.eval( 'vimspector#test#signs#AssertCursorIsAtLineInBuffer( fn, 6, 1 )' )
     p.assert_called()
 EOF