diff --git a/video/videofx/src/videocompare/hashed_image.rs b/video/videofx/src/videocompare/hashed_image.rs
index c242c80c..333fde21 100644
--- a/video/videofx/src/videocompare/hashed_image.rs
+++ b/video/videofx/src/videocompare/hashed_image.rs
@@ -73,6 +73,7 @@ impl HasherEngine {
                 let (val, _) = algo.compare(left, right);
                 val.into()
             }
+            #[cfg(feature = "dssim")]
             _ => unreachable!(),
         }
     }