2 files changed, 6 insertions, 0 deletions
diff --git a/src/qml/jsruntime/qv4global_p.h b/src/qml/jsruntime/qv4global_p.h
index 8279fa00f5..d15fb356c4 100644
--- a/src/qml/jsruntime/qv4global_p.h
+++ b/src/qml/jsruntime/qv4global_p.h
@@ -191,6 +191,8 @@ Q_DECLARE_OPERATORS_FOR_FLAGS(PropertyFlags)
 
 struct PropertyAttributes
 {
+    QT_WARNING_PUSH
+    QT_WARNING_DISABLE_MSVC(4201) // nonstandard extension used: nameless struct/union
     union {
         uchar m_all;
         struct {
@@ -208,6 +210,7 @@ struct PropertyAttributes
             uchar configurable_set : 1;
         };
     };
+    QT_WARNING_POP
 
     enum Type {
         Data = 0,
diff --git a/src/qml/jsruntime/qv4stackframe_p.h b/src/qml/jsruntime/qv4stackframe_p.h
index 2882e6eee8..f24b0b2433 100644
--- a/src/qml/jsruntime/qv4stackframe_p.h
+++ b/src/qml/jsruntime/qv4stackframe_p.h
@@ -36,6 +36,8 @@ struct Q_QML_EXPORT CppStackFrameBase
     int originalArgumentsCount;
     int instructionPointer;
 
+    QT_WARNING_PUSH
+    QT_WARNING_DISABLE_MSVC(4201) // nonstandard extension used: nameless struct/union
     union {
         struct {
             Value *savedStackTop;
@@ -58,6 +60,7 @@ struct Q_QML_EXPORT CppStackFrameBase
             bool returnValueIsUndefined;
         };
     };
+    QT_WARNING_POP
 
     Kind kind;
 };