diff --git a/include/SDL3/SDL_video.h b/include/SDL3/SDL_video.h
index 21faf7134b..e3b9955831 100644
--- a/include/SDL3/SDL_video.h
+++ b/include/SDL3/SDL_video.h
@@ -959,7 +959,7 @@ extern DECLSPEC SDL_Window *SDLCALL SDL_CreateWindowWithProperties(SDL_Propertie
 #define SDL_PROP_WINDOW_CREATE_MENU_BOOLEAN                        "menu"
 #define SDL_PROP_WINDOW_CREATE_METAL_BOOLEAN                       "metal"
 #define SDL_PROP_WINDOW_CREATE_MINIMIZED_BOOLEAN                   "minimized"
-#define SDL_PROP_WINDOW_CREATE_MOUSE_GRABBED_BOOLEAN               "mouse-grabbed"
+#define SDL_PROP_WINDOW_CREATE_MOUSE_GRABBED_BOOLEAN               "mouse_grabbed"
 #define SDL_PROP_WINDOW_CREATE_OPENGL_BOOLEAN                      "opengl"
 #define SDL_PROP_WINDOW_CREATE_PARENT_POINTER                      "parent"
 #define SDL_PROP_WINDOW_CREATE_RESIZABLE_BOOLEAN                   "resizable"