diff --git a/src/mixins/socketMixin.js b/src/mixins/socketMixin.js
index 69b4f2b..8262d49 100644
--- a/src/mixins/socketMixin.js
+++ b/src/mixins/socketMixin.js
@@ -1,4 +1,4 @@
-import { wsType2messageType } from "@/utils/common";
+import { wsType2messageType, wsType2type } from "@/utils/common";
 
 export default {
     mounted() {
@@ -10,7 +10,7 @@ export default {
                     message: m.content,
                 });
                 m["contentType"] = wsType2messageType(m.ws_type);
-                this.$store.state.messages["user" + m.fromId].push(m);
+                this.$store.state.messages[wsType2type(m)].push(m);
                 this.$bus.$emit("scrollToBottom");
             }
         };
diff --git a/src/utils/common.js b/src/utils/common.js
index 26cdf74..0d21925 100644
--- a/src/utils/common.js
+++ b/src/utils/common.js
@@ -1,11 +1,15 @@
 export function wsType2messageType(wsType) {
-    return (wsType - 3) / 2;
+    return parseInt((wsType - 3) / 2);
 }
 
 export function messageType2wsType(messageType, isGroup) {
     return messageType * 2 + 3 + isGroup;
 }
 
+export function wsType2type(m) {
+    return m.ws_type % 2 === 0 ? "group" + m.toId : "user" + m.fromId;
+}
+
 import { audioExtensions, videoExtensions } from "@/config/file-extensions";
 export function getFileSpecificType(fileName) {
     if (isIncludeExtension(audioExtensions, fileName)) {