diff --git a/src/plugins/cppeditor/cppeditorplugin.h b/src/plugins/cppeditor/cppeditorplugin.h
index 54a971a3225..3bf01566785 100644
--- a/src/plugins/cppeditor/cppeditorplugin.h
+++ b/src/plugins/cppeditor/cppeditorplugin.h
@@ -174,6 +174,7 @@ private slots:
     void test_quickfix_MoveAllFuncDefOutside_MemberFuncOutside();
     void test_quickfix_MoveAllFuncDefOutside_DoNotTriggerOnBaseClass();
     void test_quickfix_MoveAllFuncDefOutside_classWithBaseClass();
+    void test_quickfix_MoveAllFuncDefOutside_ignoreMacroCode();
 
     void test_quickfix_MoveFuncDefToDecl_MemberFunc();
     void test_quickfix_MoveFuncDefToDecl_MemberFuncOutside();
diff --git a/src/plugins/cppeditor/cppquickfix_test.cpp b/src/plugins/cppeditor/cppquickfix_test.cpp
index 4375d8a0bda..1ad54e67c0c 100644
--- a/src/plugins/cppeditor/cppquickfix_test.cpp
+++ b/src/plugins/cppeditor/cppquickfix_test.cpp
@@ -4102,6 +4102,34 @@ void CppEditorPlugin::test_quickfix_MoveAllFuncDefOutside_classWithBaseClass()
     QuickFixOperationTest(singleDocument(original, expected), &factory);
 }
 
+/// Check: Do not take macro expanded code into account (QTCREATORBUG-13900)
+void CppEditorPlugin::test_quickfix_MoveAllFuncDefOutside_ignoreMacroCode()
+{
+    QByteArray original =
+        "#define FAKE_Q_OBJECT int bar() {return 5;}\n"
+        "class Fo@o {\n"
+        "    FAKE_Q_OBJECT\n"
+        "    int f1()\n"
+        "    {\n"
+        "        return 1;\n"
+        "    }\n"
+        "};\n";
+    QByteArray expected =
+        "#define FAKE_Q_OBJECT int bar() {return 5;}\n"
+        "class Foo {\n"
+        "    FAKE_Q_OBJECT\n"
+        "    int f1();\n"
+        "};\n"
+        "\n\n"
+        "int Foo::f1()\n"
+        "{\n"
+        "    return 1;\n"
+        "}\n";
+
+    MoveAllFuncDefOutside factory;
+    QuickFixOperationTest(singleDocument(original, expected), &factory);
+}
+
 void CppEditorPlugin::test_quickfix_AssignToLocalVariable_templates()
 {
 
diff --git a/src/plugins/cppeditor/cppquickfixes.cpp b/src/plugins/cppeditor/cppquickfixes.cpp
index b005b525e21..a0b182fae1d 100644
--- a/src/plugins/cppeditor/cppquickfixes.cpp
+++ b/src/plugins/cppeditor/cppquickfixes.cpp
@@ -4650,8 +4650,10 @@ public:
     {
         MoveFuncDefRefactoringHelper helper(this, m_type, m_headerFileName, m_cppFileName);
         for (DeclarationListAST *it = m_classDef->member_specifier_list; it; it = it->next) {
-            if (FunctionDefinitionAST *funcAST = it->value->asFunctionDefinition())
-                helper.performMove(funcAST);
+            if (FunctionDefinitionAST *funcAST = it->value->asFunctionDefinition()) {
+                if (funcAST->symbol && !funcAST->symbol->isGenerated())
+                    helper.performMove(funcAST);
+            }
         }
         helper.applyChanges();
     }
@@ -4685,9 +4687,11 @@ void MoveAllFuncDefOutside::match(const CppQuickFixInterface &interface, QuickFi
     // Determine if the class has at least one function definition
     bool classContainsFunctions = false;
     for (DeclarationListAST *it = classAST->member_specifier_list; it; it = it->next) {
-        if (it->value->asFunctionDefinition()) {
-            classContainsFunctions = true;
-            break;
+        if (FunctionDefinitionAST *funcAST = it->value->asFunctionDefinition()) {
+            if (funcAST->symbol && !funcAST->symbol->isGenerated()) {
+                classContainsFunctions = true;
+                break;
+            }
         }
     }
     if (!classContainsFunctions)