diff --git a/frigate/util/model.py b/frigate/util/model.py
index 03d3c27335..d433200064 100644
--- a/frigate/util/model.py
+++ b/frigate/util/model.py
@@ -183,7 +183,7 @@ def classify_face(self, embedding: np.ndarray) -> Optional[tuple[str, float]]:
 
         res = self.classifier.predict([embedding])
 
-        if not res:
+        if res is None:
             return None
 
         label = res[0]