diff --git a/bin/pdev b/bin/pdev
index 1c247cd..0e61e07 100755
--- a/bin/pdev
+++ b/bin/pdev
@@ -137,8 +137,13 @@ merge)
         ;;
     esac
     git_ensure_cleancheckout
-    ensure_branches
-    merge_action "$@"
+    if ! array_contains LocalBranches "$SrcBranch"; then
+        # si la branche source n'existe pas, la créer
+        exec "$MYDIR/pman" "$FEATURE${SrcBranch#$FEATURE}"
+    else
+        ensure_branches
+        merge_action "$@"
+    fi
     ;;
 *)
     die "$action: action non implémentée"