diff --git a/lib/Geocode.php b/lib/Geocode.php
index ec7728d2..cf05df12 100644
--- a/lib/Geocode.php
+++ b/lib/Geocode.php
@@ -252,7 +252,7 @@ class Geocode
                     $aCountries[] = strtolower($sCountryCode);
                 }
             }
-            if (isset($aCountryCodes))
+            if (isset($aCountries))
                 $this->aCountryCodes = $aCountries;
         }
 
diff --git a/tests/features/api/regression.feature b/tests/features/api/regression.feature
index c50ab7df..34603aec 100644
--- a/tests/features/api/regression.feature
+++ b/tests/features/api/regression.feature
@@ -207,3 +207,11 @@ Feature: API regression tests
          | osm_type   | osm_id     | latlon
          | node       | 257363453  | 35.8404121,128.5586643 +-100m
 
+    Scenario: trac #5427
+        Given the request parameters
+         | countrycodes |
+         | DE           |
+        When sending json search query "12345" with address
+        Then result addresses contain
+         | country_code |
+         | de           |