diff --git a/src/main.cpp b/src/main.cpp
index 8a6fa08..ca5a944 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2116,7 +2116,7 @@ int main(int argc, char **argv) {
             };
 
             Uint32 num_grid_cells = current_map.height * current_map.width;
-            if (selected_tile_kind != -1)
+            if (selected_tile == -1)
                 num_grid_cells = (current_map.height + 1) * (current_map.width + 1);
             
             SDL_BindGPUGraphicsPipeline(render_pass, grid_graphics_pipeline);