diff --git a/src/plugins/cppeditor/cppquickfix_test.cpp b/src/plugins/cppeditor/cppquickfix_test.cpp
index 5f13f8dfeda..0897ab892e7 100644
--- a/src/plugins/cppeditor/cppquickfix_test.cpp
+++ b/src/plugins/cppeditor/cppquickfix_test.cpp
@@ -3865,11 +3865,15 @@ void CppEditorPlugin::test_quickfix_ConvertQt4Connect_connectWithinClass_data()
     QTest::addColumn<QByteArray>("original");
     QTest::addColumn<QByteArray>("expected");
 
-    QTest::newRow("case1")
+    QTest::newRow("four-args-connect")
             << QByteArray("conne@ct(this, SIGNAL(sigFoo(int)), this, SLOT(setProp(int)));")
             << QByteArray("connect(this, &TestClass::sigFoo, this, &TestClass::setProp);");
 
-    QTest::newRow("case2")
+    QTest::newRow("four-args-disconnect")
+            << QByteArray("disconne@ct(this, SIGNAL(sigFoo(int)), this, SLOT(setProp(int)));")
+            << QByteArray("disconnect(this, &TestClass::sigFoo, this, &TestClass::setProp);");
+
+    QTest::newRow("three-args-connect")
             << QByteArray("conne@ct(this, SIGNAL(sigFoo(int)), SLOT(setProp(int)));")
             << QByteArray("connect(this, &TestClass::sigFoo, this, &TestClass::setProp);");
 }
diff --git a/src/plugins/cppeditor/cppquickfixes.cpp b/src/plugins/cppeditor/cppquickfixes.cpp
index 429925e9126..b6a4148f561 100644
--- a/src/plugins/cppeditor/cppquickfixes.cpp
+++ b/src/plugins/cppeditor/cppquickfixes.cpp
@@ -5412,7 +5412,7 @@ bool findConnectReplacement(const CppQuickFixInterface &interface,
     return true;
 }
 
-bool onConnectCall(AST *ast, const ExpressionListAST **arguments)
+bool onConnectOrDisconnectCall(AST *ast, const ExpressionListAST **arguments)
 {
     if (!ast)
         return false;
@@ -5437,7 +5437,7 @@ bool onConnectCall(AST *ast, const ExpressionListAST **arguments)
         return false;
 
     const QByteArray name(id->chars(), id->size());
-    if (name != "connect")
+    if (name != "connect" && name != "disconnect")
         return false;
 
     if (arguments)
@@ -5493,7 +5493,7 @@ void ConvertQt4Connect::match(const CppQuickFixInterface &interface, QuickFixOpe
 
     for (int i = path.size(); --i >= 0; ) {
         const ExpressionListAST *arguments;
-        if (!onConnectCall(path.at(i), &arguments))
+        if (!onConnectOrDisconnectCall(path.at(i), &arguments))
             continue;
 
         const ExpressionAST *arg1, *arg3;