diff --git a/roles/koschei/backend/templates/config-backend.cfg.j2 b/roles/koschei/backend/templates/config-backend.cfg.j2
index 92403e0b11..f18a903f16 100644
--- a/roles/koschei/backend/templates/config-backend.cfg.j2
+++ b/roles/koschei/backend/templates/config-backend.cfg.j2
@@ -58,10 +58,10 @@ config = {
             {% endif %}
         },
         "build_resolver": {
-            "memory_limit": 1024**3,
+            "memory_limit": 1024**2,  # kilobytes
         },
         "repo_resolver": {
-            "memory_limit": 1024**3,
+            "memory_limit": 1024**2,  # kilobytes
         },
     },
     "priorities": {