diff --git a/src/sdl/i_video.cpp b/src/sdl/i_video.cpp
index bd47a09c6..329b52476 100644
--- a/src/sdl/i_video.cpp
+++ b/src/sdl/i_video.cpp
@@ -506,6 +506,11 @@ static void Impl_HandleWindowEvent(SDL_WindowEvent evt)
 		case SDL_WINDOWEVENT_MOVED:
 			window_x = evt.data1;
 			window_y = evt.data2;
+			break;
+		case SDL_WINDOWEVENT_SIZE_CHANGED:
+			vid.realwidth = evt.data1;
+			vid.realheight = evt.data2;
+			break;
 	}
 
 	if (FOCUSUNION == oldfocus) // No state change
@@ -1540,7 +1545,7 @@ INT32 VID_SetMode(INT32 modeNum)
 
 static SDL_bool Impl_CreateWindow(SDL_bool fullscreen)
 {
-	int flags = 0;
+	uint32_t flags = SDL_WINDOW_RESIZABLE;
 
 	if (rendermode == render_none) // dedicated
 		return SDL_TRUE; // Monster Iestyn -- not sure if it really matters what we return here tbh