diff --git a/frigate/config/semantic_search.py b/frigate/config/semantic_search.py
index d95468f09..f0eb5d98c 100644
--- a/frigate/config/semantic_search.py
+++ b/frigate/config/semantic_search.py
@@ -24,7 +24,10 @@ class SemanticSearchConfig(FrigateBaseModel):
 class FaceRecognitionConfig(FrigateBaseModel):
     enabled: bool = Field(default=False, title="Enable face recognition.")
     threshold: float = Field(
-        default=170, title="minimum face distance score required to be considered a match."
+        default=170,
+        title="minimum face distance score required to be considered a match.",
+        gt=0.0,
+        le=1.0,
     )
     min_area: int = Field(
         default=500, title="Min area of face box to consider running face recognition."