diff --git a/deno-runtime/AppObjectRegistry.ts b/deno-runtime/AppObjectRegistry.ts
index d75e78460..9069c17ea 100644
--- a/deno-runtime/AppObjectRegistry.ts
+++ b/deno-runtime/AppObjectRegistry.ts
@@ -1,8 +1,10 @@
+export type Maybe<T> = T | null | undefined;
+
 export const AppObjectRegistry = new class {
     registry: Record<string, unknown> = {};
 
-    public get(key: string): unknown {
-        return this.registry[key];
+    public get<T>(key: string): Maybe<T> {
+        return this.registry[key] as Maybe<T>;
     }
 
     public set(key: string, value: unknown): void {
diff --git a/deno-runtime/lib/logger.ts b/deno-runtime/lib/logger.ts
index 53bee44a5..bf84a176f 100644
--- a/deno-runtime/lib/logger.ts
+++ b/deno-runtime/lib/logger.ts
@@ -78,7 +78,7 @@ export class Logger {
             }
             const str = JSON.stringify(args, null, 2);
             return str ? JSON.parse(str) : str; // force call toJSON to prevent circular references
-            
+
         });
 
         this.entries.push({
@@ -116,6 +116,10 @@ export class Logger {
         return new Date().getTime() - this.start.getTime();
     }
 
+    public hasEntries(): boolean {
+        return this.entries.length > 0;
+    }
+
     public getLogs(): ILoggerStorageEntry {
         return {
             appId: this.appId,
diff --git a/deno-runtime/lib/messenger.ts b/deno-runtime/lib/messenger.ts
index 97dd43859..1baf34d1d 100644
--- a/deno-runtime/lib/messenger.ts
+++ b/deno-runtime/lib/messenger.ts
@@ -73,17 +73,26 @@ export async function sendMethodNotFound(id: jsonrpc.ID): Promise<void> {
 }
 
 export async function errorResponse({ error: { message, code = -32000, data }, id }: ErrorResponseDescriptor): Promise<void> {
-    const logger = AppObjectRegistry.get('logger') as Logger;
-    const logs = logger.getLogs();
-    const rpc = jsonrpc.error(id, new jsonrpc.JsonRpcError(message, code, {logs, ...data}));
+    const logger = AppObjectRegistry.get<Logger>('logger');
+
+    if (logger?.hasEntries()) {
+        data.logs = logger.getLogs();
+    }
+
+    const rpc = jsonrpc.error(id, new jsonrpc.JsonRpcError(message, code, data));
 
     await send(rpc);
 }
 
 export async function successResponse({ id, result }: SuccessResponseDescriptor): Promise<void> {
-    const logger = AppObjectRegistry.get('logger') as Logger;
-    const logs = logger.getLogs();
-    const rpc = jsonrpc.success(id, {value: result, logs});
+    const payload = { value: result } as Record<string, unknown>;
+    const logger = AppObjectRegistry.get<Logger>('logger');
+
+    if (logger?.hasEntries()) {
+        payload.logs = logger.getLogs();
+    }
+
+    const rpc = jsonrpc.success(id, payload);
 
     await send(rpc);
 }