diff --git a/Flow.Launcher.Core/Plugin/ExecutablePlugin.cs b/Flow.Launcher.Core/Plugin/ExecutablePlugin.cs
index a7bbccfec..857122aa6 100644
--- a/Flow.Launcher.Core/Plugin/ExecutablePlugin.cs
+++ b/Flow.Launcher.Core/Plugin/ExecutablePlugin.cs
@@ -1,5 +1,6 @@
 using System.Diagnostics;
 using System.IO;
+using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -27,14 +28,14 @@ namespace Flow.Launcher.Core.Plugin
         protected override Task<Stream> RequestAsync(JsonRPCRequestModel request, CancellationToken token = default)
         {
             // since this is not static, request strings will build up in ArgumentList if index is not specified
-            _startInfo.ArgumentList[0] = request.ToString();
+            _startInfo.ArgumentList[0] = JsonSerializer.Serialize(request, RequestSerializeOption);
             return ExecuteAsync(_startInfo, token);
         }
 
         protected override string Request(JsonRPCRequestModel rpcRequest, CancellationToken token = default)
         {
             // since this is not static, request strings will build up in ArgumentList if index is not specified
-            _startInfo.ArgumentList[0] = rpcRequest.ToString();
+            _startInfo.ArgumentList[0] = JsonSerializer.Serialize(rpcRequest, RequestSerializeOption);
             return Execute(_startInfo);
         }
     }
diff --git a/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs b/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
index a3f58b5b9..97c3c8981 100644
--- a/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
+++ b/Flow.Launcher.Core/Plugin/JsonRPCPlugin.cs
@@ -256,7 +256,7 @@ namespace Flow.Launcher.Core.Plugin
                 {
                     query.Search
                 },
-                Settings.Inner);
+                Settings?.Inner);
 
             var output = await RequestAsync(request, token);