diff --git a/src/libs/3rdparty/cplusplus/AST.cpp b/src/libs/3rdparty/cplusplus/AST.cpp
index a48067ab755..360918d2af2 100644
--- a/src/libs/3rdparty/cplusplus/AST.cpp
+++ b/src/libs/3rdparty/cplusplus/AST.cpp
@@ -1393,7 +1393,6 @@ int ForeachStatementAST::lastToken() const
     return 1;
 }
 
-/** \generated */
 int FunctionDeclaratorAST::firstToken() const
 {
     if (lparen_token)
@@ -1403,40 +1402,50 @@ int FunctionDeclaratorAST::firstToken() const
             return candidate;
     if (rparen_token)
         return rparen_token;
-    if (cv_qualifier_list)
-        if (int candidate = cv_qualifier_list->firstToken())
-            return candidate;
-    if (ref_qualifier_token)
+    const int firstQualListToken = cv_qualifier_list ? cv_qualifier_list->firstToken() : 0;
+    const auto isBeforeFirstQualListToken = [firstQualListToken](int token) {
+        return token && (!firstQualListToken || token < firstQualListToken);
+    };
+    if (isBeforeFirstQualListToken(ref_qualifier_token))
         return ref_qualifier_token;
-    if (exception_specification)
-        if (int candidate = exception_specification->firstToken())
+    if (exception_specification) {
+        const int candidate = exception_specification->firstToken();
+        if (isBeforeFirstQualListToken(candidate))
             return candidate;
-    if (trailing_return_type)
-        if (int candidate = trailing_return_type->firstToken())
+    }
+    if (trailing_return_type) {
+        const int candidate = trailing_return_type->firstToken();
+        if (isBeforeFirstQualListToken(candidate))
             return candidate;
+    }
+    if (firstQualListToken)
+        return firstQualListToken;
     if (as_cpp_initializer)
         if (int candidate = as_cpp_initializer->firstToken())
             return candidate;
     return 0;
 }
 
-/** \generated */
 int FunctionDeclaratorAST::lastToken() const
 {
     if (as_cpp_initializer)
         if (int candidate = as_cpp_initializer->lastToken())
             return candidate;
-    if (trailing_return_type)
-        if (int candidate = trailing_return_type->lastToken())
-            return candidate;
-    if (exception_specification)
-        if (int candidate = exception_specification->lastToken())
-            return candidate;
-    if (ref_qualifier_token)
-        return ref_qualifier_token + 1;
-    if (cv_qualifier_list)
-        if (int candidate = cv_qualifier_list->lastToken())
-            return candidate;
+    const int lastQualListToken = cv_qualifier_list ? cv_qualifier_list->lastToken() : 0;
+    const auto tokenOrLastQualListToken = [lastQualListToken](int token) {
+        return std::max(token ? token + 1 : 0, lastQualListToken);
+    };
+    const auto tokenFromAstOrLastQualListToken = [lastQualListToken](const AST *ast) {
+        return std::max(ast ? ast->lastToken() : 0, lastQualListToken);
+    };
+    if (int candidate = tokenFromAstOrLastQualListToken(trailing_return_type))
+        return candidate;
+    if (int candidate = tokenFromAstOrLastQualListToken(exception_specification))
+        return candidate;
+    if (int candidate = tokenOrLastQualListToken(ref_qualifier_token))
+        return candidate;
+    if (lastQualListToken)
+        return lastQualListToken;
     if (rparen_token)
         return rparen_token + 1;
     if (parameter_declaration_clause)
diff --git a/src/plugins/cppeditor/cppquickfix_test.cpp b/src/plugins/cppeditor/cppquickfix_test.cpp
index dd85e95470e..93845b51c80 100644
--- a/src/plugins/cppeditor/cppquickfix_test.cpp
+++ b/src/plugins/cppeditor/cppquickfix_test.cpp
@@ -6110,6 +6110,41 @@ void QuickfixTest::testMoveFuncDefOutsideMemberFuncToCppWithInlinePartOfName()
     QuickFixOperationTest(testDocuments, &factory);
 }
 
+void QuickfixTest::testMoveFuncDefOutsideMixedQualifiers()
+{
+    QList<TestDocumentPtr> testDocuments;
+    QByteArray original;
+    QByteArray expected;
+
+    // Header File
+    original = R"(
+struct Base {
+    virtual auto func() const && noexcept -> void = 0;
+};
+struct Derived : public Base {
+    auto @func() const && noexcept -> void override {}
+};)";
+    expected = R"(
+struct Base {
+    virtual auto func() const && noexcept -> void = 0;
+};
+struct Derived : public Base {
+    auto func() const && noexcept -> void override;
+};)";
+    testDocuments << CppTestDocument::create("file.h", original, expected);
+
+    // Source File
+    original = "#include \"file.h\"\n";
+    expected = R"DELIM(#include "file.h"
+
+void Derived::func() const &&noexcept {}
+)DELIM";
+    testDocuments << CppTestDocument::create("file.cpp", original, expected);
+
+    MoveFuncDefOutside factory;
+    QuickFixOperationTest(testDocuments, &factory);
+}
+
 void QuickfixTest::testMoveFuncDefOutsideMemberFuncToCppInsideNS()
 {
     QList<TestDocumentPtr> testDocuments;
diff --git a/src/plugins/cppeditor/cppquickfix_test.h b/src/plugins/cppeditor/cppquickfix_test.h
index 0201c5b3bb9..3995234374b 100644
--- a/src/plugins/cppeditor/cppquickfix_test.h
+++ b/src/plugins/cppeditor/cppquickfix_test.h
@@ -192,6 +192,7 @@ private slots:
     void testMoveFuncDefOutsideUnnamedTemplate();
     void testMoveFuncDefOutsideMemberFuncToCppStatic();
     void testMoveFuncDefOutsideMemberFuncToCppWithInlinePartOfName();
+    void testMoveFuncDefOutsideMixedQualifiers();
 
     void testMoveAllFuncDefOutsideMemberFuncToCpp();
     void testMoveAllFuncDefOutsideMemberFuncOutside();