diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 88220d9..f458125 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -36,12 +36,12 @@
             spare:
               min: 25
               max: 75
+            threads_per_child: 25
             # Avoid memory leakage by restarting workers every x requests
             max_requests: 0
           # Should be 80% of server memory / average memory usage of one worker
           max_clients: 150
           limit: 64
-          threads_per_child: 25
         worker:
           enabled: false
           servers:
@@ -49,9 +49,9 @@
             spare:
               min: 25
               max: 75
+            threads_per_child: 25
             # Avoid memory leakage by restarting workers every x requests
             max_requests: 0
           # Should be 80% of server memory / average memory usage of one worker
           max_clients: 150
           limit: 64
-          threads_per_child: 25