diff --git a/public/wiregasm/worker.js b/public/wiregasm/worker.js
index 1d650b5a..7b5872af 100644
--- a/public/wiregasm/worker.js
+++ b/public/wiregasm/worker.js
@@ -63,6 +63,9 @@ function replacer(key, value) {
 this.onmessage = ev => {
   const data = ev.data;
   switch (data.type) {
+    case 'close':
+      wg.destroy();
+      break;
     case 'columns':
       const columns = wg.columns();
       if (Array.isArray(columns)) {
diff --git a/src/views/traceManage/tshark/hooks/usePCAP.ts b/src/views/traceManage/tshark/hooks/usePCAP.ts
index 0d40a51f..83e9b490 100644
--- a/src/views/traceManage/tshark/hooks/usePCAP.ts
+++ b/src/views/traceManage/tshark/hooks/usePCAP.ts
@@ -193,8 +193,8 @@ export function usePCAP() {
       stop_time: 0,
       elapsed_time: 0,
     };
-    state.finishedProcessing = false; 
-    
+    state.finishedProcessing = false;
+
     wk.send({ type: 'process', file: file });
   }
 
@@ -300,7 +300,7 @@ export function usePCAP() {
   });
 
   onBeforeUnmount(() => {
-    wk.close();
+    wk.send({ type: 'close' }) && wk.close();
   });
 
   return {