diff --git a/Flow.Launcher.Core/Plugin/PluginManager.cs b/Flow.Launcher.Core/Plugin/PluginManager.cs
index 5c4eaa1dadc..6a856b96571 100644
--- a/Flow.Launcher.Core/Plugin/PluginManager.cs
+++ b/Flow.Launcher.Core/Plugin/PluginManager.cs
@@ -364,8 +364,8 @@ public static void AddActionKeyword(string id, string newActionKeyword)
             {
                 NonGlobalPlugins[newActionKeyword] = plugin;
             }
-
-            plugin.Metadata.ActionKeywords.Add(newActionKeyword);
+            if (!plugin.Metadata.ActionKeywords.Contains(newActionKeyword))
+                plugin.Metadata.ActionKeywords.Add(newActionKeyword);
         }
 
         /// <summary>