diff --git a/project/Core/Src/website_backend.c b/project/Core/Src/website_backend.c
index 7708ce4..55c63fe 100644
--- a/project/Core/Src/website_backend.c
+++ b/project/Core/Src/website_backend.c
@@ -287,7 +287,7 @@ void wbe_display(const char* txt, const uint32_t txt_color, const uint32_t bg_co
 
     // Variables
     lcd_gif_t *gif;
-    char *extension;
+    const char *extension;
 
     // clear the screen
     lcd_clear_text();