diff --git a/cogs/image_prompt_optimizer.py b/cogs/image_prompt_optimizer.py
index 0533c90..915fa91 100644
--- a/cogs/image_prompt_optimizer.py
+++ b/cogs/image_prompt_optimizer.py
@@ -75,7 +75,7 @@ class ImgPromptOptimizer(discord.Cog, name="ImgPromptOptimizer"):
 
         final_prompt = self.OPTIMIZER_PRETEXT
         # replace mentions with nicknames for the prompt
-        final_prompt += await self.converser_cog.replace_mention(ctx, prompt)
+        final_prompt += await self.converser_cog.mention_with_username(ctx, prompt)
 
         # If the prompt doesn't end in a period, terminate it.
         if not final_prompt.endswith("."):