diff --git a/.gitignore b/.gitignore
index 116cd87bce..065ad77185 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,6 +45,7 @@ share/python-wheels/
 MANIFEST
 cache/
 node_modules/
+buggy/
 
 # Logs
 *.log
diff --git a/bugbug/model.py b/bugbug/model.py
index a004bf5d55..cfb059af40 100644
--- a/bugbug/model.py
+++ b/bugbug/model.py
@@ -189,7 +189,8 @@ def get_human_readable_feature_names(self):
             elif type_ == "text":
                 feature_name = f"Combined text contains '{feature_name}'"
             elif type_ not in ("data", "couple_data"):
-                raise Exception(f"Unexpected feature type for: {full_feature_name}")
+                raise ValueError(f"Unexpected feature type for: {full_feature_name}")
+            
 
             cleaned_feature_names.append(feature_name)