diff --git a/library/Director/IcingaConfig/IcingaConfigHelper.php b/library/Director/IcingaConfig/IcingaConfigHelper.php
index 6d5610bb..71e4a5bc 100644
--- a/library/Director/IcingaConfig/IcingaConfigHelper.php
+++ b/library/Director/IcingaConfig/IcingaConfigHelper.php
@@ -149,7 +149,7 @@ class IcingaConfigHelper
         if (empty($vals)) {
             return '{}';
         }
-        ksort($vals);
+        ksort($vals, SORT_STRING);
 
         // Prefix for toConfigString?
         return "{\n" . implode("\n", $vals) . "\n}";
diff --git a/test/php/library/Director/IcingaConfig/rendered/dict1.out b/test/php/library/Director/IcingaConfig/rendered/dict1.out
index ff6f0228..9f4e6bf9 100644
--- a/test/php/library/Director/IcingaConfig/rendered/dict1.out
+++ b/test/php/library/Director/IcingaConfig/rendered/dict1.out
@@ -1,6 +1,6 @@
 {
+    "0" = numeric
     @include = reserved
     key1 = bla
     "spe cial" = value
-    "0" = numeric
 }