diff --git a/lib/Controller/MembersController.php b/lib/Controller/MembersController.php
index 29360486b..4a0acbd00 100644
--- a/lib/Controller/MembersController.php
+++ b/lib/Controller/MembersController.php
@@ -174,7 +174,7 @@ public function searchGlobal($search) {
 				);
 		}
 
-		if ($this->configService->getAppValue('shareapi_allow_share_dialog_user_enumeration') !== 'yes') {
+		if ($this->configService->getCoreValue('shareapi_allow_share_dialog_user_enumeration') !== 'yes') {
 			$result = array_filter(
 				$result,
 				function($data, $k) use ($search) {
diff --git a/lib/Service/ConfigService.php b/lib/Service/ConfigService.php
index 5c6947201..26c6ac153 100644
--- a/lib/Service/ConfigService.php
+++ b/lib/Service/ConfigService.php
@@ -200,6 +200,20 @@ public function generateRemoteHost($remote) {
 	}
 
 
+	/**
+	 * Get a value by key
+	 *
+	 * @param string $key
+	 *
+	 * @return string
+	 */
+	public function getCoreValue($key) {
+		$defaultValue = null;
+
+		return $this->config->getAppValue('core', $key, $defaultValue);
+	}
+
+
 	/**
 	 * Get a value by key
 	 *