diff --git a/ui/platform/linux/ui_utility_linux.cpp b/ui/platform/linux/ui_utility_linux.cpp
index 2479325..76bb270 100644
--- a/ui/platform/linux/ui_utility_linux.cpp
+++ b/ui/platform/linux/ui_utility_linux.cpp
@@ -9,8 +9,9 @@
 #include "base/platform/base_platform_info.h"
 #include "base/platform/linux/base_linux_glibmm_helper.h"
 #include "base/platform/linux/base_linux_xdp_utilities.h"
-#include "ui/platform/linux/ui_linux_wayland_integration.h"
+#include "base/call_delayed.h"
 #include "base/const_string.h"
+#include "ui/platform/linux/ui_linux_wayland_integration.h"
 
 #ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
 #include "base/platform/linux/base_linux_xcb_utilities.h"
@@ -26,6 +27,10 @@ namespace Platform {
 namespace {
 
 constexpr auto kXCBFrameExtentsAtomName = "_GTK_FRAME_EXTENTS"_cs;
+constexpr auto kDelayDeactivateEventTimeout = crl::time(400);
+
+bool PendingDeactivateEvent/* = false*/;
+int ChildPopupsHiddenOnWayland/* = 0*/;
 
 #ifndef DESKTOP_APP_DISABLE_X11_INTEGRATION
 std::optional<bool> XCBWindowMapped(xcb_window_t window) {
@@ -548,6 +553,34 @@ void ShowWindowMenu(not_null<QWidget*> widget, const QPoint &point) {
 	}
 }
 
+void RegisterChildPopupHiding() {
+	if (!::Platform::IsWayland()) {
+		return;
+	}
+	++ChildPopupsHiddenOnWayland;
+	base::call_delayed(kDelayDeactivateEventTimeout, [] {
+		if (!--ChildPopupsHiddenOnWayland) {
+			if (base::take(PendingDeactivateEvent)) {
+				// We didn't receive ApplicationActivate event in time.
+				QEvent appDeactivate(QEvent::ApplicationDeactivate);
+				QCoreApplication::sendEvent(qApp, &appDeactivate);
+			}
+		}
+	});
+}
+
+bool SkipApplicationDeactivateEvent() {
+	if (!ChildPopupsHiddenOnWayland) {
+		return false;
+	}
+	PendingDeactivateEvent = true;
+	return true;
+}
+
+void GotApplicationActivateEvent() {
+	PendingDeactivateEvent = false;
+}
+
 namespace internal {
 
 TitleControls::Layout TitleControlsLayout() {
diff --git a/ui/platform/mac/ui_utility_mac.mm b/ui/platform/mac/ui_utility_mac.mm
index 857db1e..3c59a5f 100644
--- a/ui/platform/mac/ui_utility_mac.mm
+++ b/ui/platform/mac/ui_utility_mac.mm
@@ -147,6 +147,16 @@ std::optional<bool> IsOverlapped(
 	return false;
 }
 
+void RegisterChildPopupHiding() {
+}
+
+bool SkipApplicationDeactivateEvent() {
+	return false;
+}
+
+void GotApplicationActivateEvent() {
+}
+
 namespace internal {
 
 TitleControls::Layout TitleControlsLayout() {
diff --git a/ui/platform/ui_platform_utility.h b/ui/platform/ui_platform_utility.h
index 3def532..e7343cc 100644
--- a/ui/platform/ui_platform_utility.h
+++ b/ui/platform/ui_platform_utility.h
@@ -58,6 +58,12 @@ void ShowWindowMenu(not_null<QWidget*> widget, const QPoint &point);
 
 void FixPopupMenuNativeEmojiPopup(not_null<PopupMenu*> menu);
 
+// Workaround for a Qt/Wayland bug that hides the parent popup when
+// the child popup gets hidden, by sending Deactivate / Activate events.
+void RegisterChildPopupHiding();
+[[nodiscard]] bool SkipApplicationDeactivateEvent();
+void GotApplicationActivateEvent();
+
 } // namespace Ui::Platform
 
 // Platform dependent implementations.
diff --git a/ui/platform/win/ui_utility_win.cpp b/ui/platform/win/ui_utility_win.cpp
index bb1cc32..e81b150 100644
--- a/ui/platform/win/ui_utility_win.cpp
+++ b/ui/platform/win/ui_utility_win.cpp
@@ -203,4 +203,14 @@ void FixPopupMenuNativeEmojiPopup(not_null<PopupMenu*> menu) {
 		menu->lifetime().make_state<Filter>(menu));
 }
 
+void RegisterChildPopupHiding() {
+}
+
+bool SkipApplicationDeactivateEvent() {
+	return false;
+}
+
+void GotApplicationActivateEvent() {
+}
+
 } // namespace Ui::Platform
diff --git a/ui/widgets/popup_menu.cpp b/ui/widgets/popup_menu.cpp
index 305bc0f..049455d 100644
--- a/ui/widgets/popup_menu.cpp
+++ b/ui/widgets/popup_menu.cpp
@@ -673,6 +673,9 @@ bool PopupMenu::eventFilter(QObject *o, QEvent *e) {
 }
 
 void PopupMenu::hideMenu(bool fast) {
+	if (fast && _parent) {
+		Platform::RegisterChildPopupHiding();
+	}
 	if (isHidden() || (_hiding && !fast)) {
 		return;
 	}