diff --git a/devtools/deployments/opencloud_full/config/stalwart/idmldap.toml b/devtools/deployments/opencloud_full/config/stalwart/idmldap.toml
index d9683f668..269071e62 100644
--- a/devtools/deployments/opencloud_full/config/stalwart/idmldap.toml
+++ b/devtools/deployments/opencloud_full/config/stalwart/idmldap.toml
@@ -108,3 +108,4 @@ tracer.console.level = "trace"
 tracer.console.lossy = false
 tracer.console.multiline = false
 tracer.console.type = "stdout"
+sharing.allow-directory-query = false