diff --git a/skills/nano-banana-pro/scripts/generate_image.py b/skills/nano-banana-pro/scripts/generate_image.py
index cb470b384c9..e13502e08bd 100755
--- a/skills/nano-banana-pro/scripts/generate_image.py
+++ b/skills/nano-banana-pro/scripts/generate_image.py
@@ -192,8 +192,9 @@ def main():
         if image_saved:
             full_path = output_path.resolve()
             print(f"\nImage saved: {full_path}")
-            # OpenClaw parses MEDIA tokens and will attach the file on supported providers.
-            print(f"MEDIA: {full_path}")
+            # OpenClaw parses MEDIA: tokens (line-start, no space after colon)
+            # and will attach the file on supported chat providers.
+            print(f"MEDIA:{full_path}")
         else:
             print("Error: No image was generated in the response.", file=sys.stderr)
             sys.exit(1)