diff --git a/client/SDL/SDL2/sdl_freerdp.cpp b/client/SDL/SDL2/sdl_freerdp.cpp
index 95d322e03..2cc7f8f8f 100644
--- a/client/SDL/SDL2/sdl_freerdp.cpp
+++ b/client/SDL/SDL2/sdl_freerdp.cpp
@@ -334,6 +334,8 @@ class SdlEventUpdateTriggerGuard
 	}
 	SdlEventUpdateTriggerGuard(const SdlEventUpdateTriggerGuard&) = delete;
 	SdlEventUpdateTriggerGuard(SdlEventUpdateTriggerGuard&&) = delete;
+	SdlEventUpdateTriggerGuard& operator=(const SdlEventUpdateTriggerGuard&) = delete;
+	SdlEventUpdateTriggerGuard& operator=(SdlEventUpdateTriggerGuard&&) = delete;
 };
 
 static bool sdl_draw_to_window_rect(SdlContext* sdl, SdlWindow& window, SDL_Surface* surface,
diff --git a/client/SDL/SDL3/sdl_freerdp.cpp b/client/SDL/SDL3/sdl_freerdp.cpp
index 016a92be3..f565224c1 100644
--- a/client/SDL/SDL3/sdl_freerdp.cpp
+++ b/client/SDL/SDL3/sdl_freerdp.cpp
@@ -335,6 +335,8 @@ class SdlEventUpdateTriggerGuard
 	}
 	SdlEventUpdateTriggerGuard(const SdlEventUpdateTriggerGuard&) = delete;
 	SdlEventUpdateTriggerGuard(SdlEventUpdateTriggerGuard&&) = delete;
+	SdlEventUpdateTriggerGuard& operator=(const SdlEventUpdateTriggerGuard&) = delete;
+	SdlEventUpdateTriggerGuard& operator=(SdlEventUpdateTriggerGuard&&) = delete;
 };
 
 static bool sdl_draw_to_window_rect(SdlContext* sdl, SdlWindow& window, SDL_Surface* surface,