diff --git a/api/permissioned.go b/api/permissioned.go
index eee6d330d..58d027278 100644
--- a/api/permissioned.go
+++ b/api/permissioned.go
@@ -65,7 +65,7 @@ func permissionedAny(in interface{}, out interface{}) {
 		field := rint.Type().Field(f)
 		requiredPerm := Permission(field.Tag.Get("perm"))
 		if requiredPerm == "" {
-			panic("missing 'perm' tag on " + field.Name) // is this okay? can this be used to crash the process?
+			panic("missing 'perm' tag on " + field.Name) // ok
 		}
 
 		// Validate perm tag
@@ -77,7 +77,7 @@ func permissionedAny(in interface{}, out interface{}) {
 			}
 		}
 		if !ok {
-			panic("unknown 'perm' tag on " + field.Name) // is this okay? can this be used to crash the process?
+			panic("unknown 'perm' tag on " + field.Name) // ok
 		}
 
 		fn := ra.MethodByName(field.Name)
diff --git a/chain/types/signature.go b/chain/types/signature.go
index f3a61327b..8d7182e12 100644
--- a/chain/types/signature.go
+++ b/chain/types/signature.go
@@ -56,6 +56,7 @@ func (s *Signature) TypeCode() int {
 	case KTBLS:
 		return IKTBLS
 	default:
+		log.Errorf("called TypeCode on signature with unknown Type: %q", s.Type)
 		return IKTUnknown
 	}
 }