diff --git a/ui/platform/win/ui_utility_win.cpp b/ui/platform/win/ui_utility_win.cpp
index 392a65d..6af98ea 100644
--- a/ui/platform/win/ui_utility_win.cpp
+++ b/ui/platform/win/ui_utility_win.cpp
@@ -37,7 +37,7 @@ void IgnoreAllActivation(not_null<QWidget*> widget) {
 
 	ShowWindow(handle, SW_HIDE);
 	const auto style = GetWindowLongPtr(handle, GWL_EXSTYLE);
-	SetWindowLong(
+	SetWindowLongPtr(
 		handle,
 		GWL_EXSTYLE,
 		style | WS_EX_NOACTIVATE | WS_EX_APPWINDOW);
diff --git a/ui/platform/win/ui_window_shadow_win.cpp b/ui/platform/win/ui_window_shadow_win.cpp
index 644749b..2463aa9 100644
--- a/ui/platform/win/ui_window_shadow_win.cpp
+++ b/ui/platform/win/ui_window_shadow_win.cpp
@@ -213,7 +213,7 @@ void WindowShadow::init(QColor color) {
 			return;
 		}
 		ShadowByHandle.emplace(_handles[i], this);
-		SetWindowLongPtr(_handles[i], GWLP_HWNDPARENT, (LONG)_handle);
+		SetWindowLongPtr(_handles[i], GWLP_HWNDPARENT, (LONG_PTR)_handle);
 
 		_contexts[i] = CreateCompatibleDC(_screenContext);
 		if (!_contexts[i]) {