diff --git a/src/lvgl_port/lvgl_fb_port.cpp b/src/lvgl_port/lvgl_fb_port.cpp
index 5e18b55..c8d696e 100644
--- a/src/lvgl_port/lvgl_fb_port.cpp
+++ b/src/lvgl_port/lvgl_fb_port.cpp
@@ -111,7 +111,7 @@ int lvgl_fb_run(const char* const fb_dev)
 
     destroy_widgets();
 
-	free(buf1);
+	delete[] buf1;
 	
 	close_fb(&fb);