diff --git a/core.cpp b/core.cpp
index c8dbfb7a9..a9475071b 100644
--- a/core.cpp
+++ b/core.cpp
@@ -1525,7 +1525,7 @@ void Core::decreaseVideoBusyness()
 void Core::micMuteToggle(int callId)
 {
   if (calls[callId].audioInput->state() == QAudio::ActiveState)
-    calls[callId].audioInput->stop();
+    calls[callId].audioInput->suspend();
   else
     calls[callId].audioInput->start();
 }
diff --git a/widget/form/chatform.cpp b/widget/form/chatform.cpp
index 1c436cd42..cbb245afb 100644
--- a/widget/form/chatform.cpp
+++ b/widget/form/chatform.cpp
@@ -569,6 +569,8 @@ void ChatForm::onHangupCallTriggered()
 {
     audioInputFlag = !audioInputFlag;
     emit hangupCall(callId);
+    micButton->setObjectName("green");
+    micButton->style()->polish(micButton);
 }
 
 void ChatForm::onCallTriggered()