diff --git a/index.d.ts b/index.d.ts
index 76ac264..4da695e 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1326,6 +1326,9 @@ declare namespace WAWebJS {
         webClientShouldHandle: boolean,
         /** Object with participants */
         participants: object
+
+        /** Reject the call */
+        reject: () => Promise<void>
     }
 
     /** Message type List */
diff --git a/src/structures/Call.js b/src/structures/Call.js
index 1e6644d..0e48989 100644
--- a/src/structures/Call.js
+++ b/src/structures/Call.js
@@ -62,7 +62,15 @@ class Call extends Base {
         
         return super._patch(data);
     }
-    
+
+    /**
+     * Reject the call
+    */
+    async reject() {
+        return this.client.pupPage.evaluate((peerJid, id) => {
+            return window.WWebJS.rejectCall(peerJid, id);
+        }, this.from, this.id);
+    }
 }
 
 module.exports = Call;
\ No newline at end of file
diff --git a/src/util/Injected.js b/src/util/Injected.js
index 7ece210..a0a7b12 100644
--- a/src/util/Injected.js
+++ b/src/util/Injected.js
@@ -53,6 +53,8 @@ exports.ExposeStore = (moduleRaidStr) => {
     window.Store.ReplyUtils = window.mR.findModule('canReplyMsg').length > 0 && window.mR.findModule('canReplyMsg')[0];
     window.Store.MsgActionChecks = window.mR.findModule('canSenderRevokeMsg')[0];
     window.Store.QuotedMsg = window.mR.findModule('getQuotedMsgObj')[0];
+    window.Store.Socket = window.mR.findModule('deprecatedSendIq')[0];
+    window.Store.SocketWap = window.mR.findModule('wap')[0];
     window.Store.StickerTools = {
         ...window.mR.findModule('toWebpSticker')[0],
         ...window.mR.findModule('addWebpMetadata')[0]
@@ -602,4 +604,21 @@ exports.LoadUtils = () => {
 
         return undefined;
     };
+
+    window.WWebJS.rejectCall = async (peerJid, id) => {
+        peerJid = peerJid.split('@')[0] + '@s.whatsapp.net';
+        let userId = window.Store.User.getMaybeMeUser().user + '@s.whatsapp.net';
+        const stanza = window.Store.SocketWap.wap('call', {
+            id: window.Store.SocketWap.generateId(),
+            from: window.Store.SocketWap.USER_JID(userId),
+            to: window.Store.SocketWap.USER_JID(peerJid),
+        }, [
+            window.Store.SocketWap.wap('reject', {
+                'call-id': id,
+                'call-creator': window.Store.SocketWap.USER_JID(peerJid),
+                count: '0',
+            })
+        ]);
+        await window.Store.Socket.deprecatedCastStanza(stanza);
+    };
 };