diff --git a/gurt/cog.py b/gurt/cog.py
index 71c18d3..28076cb 100644
--- a/gurt/cog.py
+++ b/gurt/cog.py
@@ -311,7 +311,12 @@ class GurtCog(commands.Cog, name="Gurt"): # Added explicit Cog name
             print(f"Generating description for sticker: {sticker.name} (ID: {sticker.id}) in guild ID {guild_id}")
             description_to_add = "No description generated."
             if sticker.format == discord.StickerFormatType.png or sticker.format == discord.StickerFormatType.apng or sticker.format == discord.StickerFormatType.gif:
-                mime_type = "image/png"
+                format_to_mime = {
+                discord.StickerFormatType.png: "image/png",
+                discord.StickerFormatType.apng: "image/apng",
+                discord.StickerFormatType.gif: "image/gif",
+                }
+                mime_type = format_to_mime.get(sticker.format, "image/png")
                 description = await api.generate_image_description(self, sticker_url, sticker.name, "sticker", mime_type)
                 description_to_add = description or "No description generated."
             elif sticker.format == discord.StickerFormatType.lottie: