diff --git a/src/ai/ollama.rs b/src/ai/ollama.rs
index 48cc220..0c473d3 100644
--- a/src/ai/ollama.rs
+++ b/src/ai/ollama.rs
@@ -483,11 +483,11 @@ Analyze the image and use specific details from both the visual content and the
     /// Generate a brief visual description of a photo for use in RAG query enrichment.
     /// Returns 1-2 sentences describing people, location, and activity visible in the image.
     /// Only called when the model has vision capabilities.
-    pub async fn generate_photo_description(&self, image_base64: String) -> Result<String> {
+    pub async fn generate_photo_description(&self, image_base64: &str) -> Result<String> {
         let prompt = "Briefly describe what you see in this image in 1-2 sentences. \
                       Focus on the people, location, and activity.";
         let system = "You are a scene description assistant. Be concise and factual.";
-        let images = vec![image_base64];
+        let images = vec![image_base64.to_string()];
 
         let description = self
             .generate_with_images(prompt, Some(system), Some(images))