diff --git a/scripts/tests/common.lua b/scripts/tests/common.lua
index e6b3b8f4a..84d614b1b 100755
--- a/scripts/tests/common.lua
+++ b/scripts/tests/common.lua
@@ -329,7 +329,7 @@ function test_guard()
   u2:add_item("money", 100)
   u3:add_item("money", 100)
   process_orders()
-  assert_equal(r.id, u1.region.id, "unit may not move after combat")
+  assert_equal(r, u1.region, "unit may not move after combat")
 end
 
 function test_recruit()