diff --git a/Flow.Launcher.Core/Plugin/PluginConfig.cs b/Flow.Launcher.Core/Plugin/PluginConfig.cs
index f7457b4e1b1..7c8e1a9d884 100644
--- a/Flow.Launcher.Core/Plugin/PluginConfig.cs
+++ b/Flow.Launcher.Core/Plugin/PluginConfig.cs
@@ -119,7 +119,7 @@ private static PluginMetadata GetPluginMetadata(string pluginDirectory)
                 // for plugins which doesn't has ActionKeywords key
                 metadata.ActionKeywords ??= new List<string> { metadata.ActionKeyword };
                 // for plugin still use old ActionKeyword
-                metadata.ActionKeyword = metadata.ActionKeywords?[0];
+                metadata.ActionKeyword = metadata.ActionKeywords?.FirstOrDefault() ?? string.Empty;
             }
             catch (Exception e)
             {