2 files changed, 2 insertions, 2 deletions
diff --git a/Firestore/Source/Model/FSTDatabaseID.m b/Firestore/Source/Model/FSTDatabaseID.m
index 4d0448a..bff5855 100644
--- a/Firestore/Source/Model/FSTDatabaseID.m
+++ b/Firestore/Source/Model/FSTDatabaseID.m
@@ -48,7 +48,7 @@ NSString *const kDefaultDatabaseID = @"(default)";
 
 - (BOOL)isEqual:(id)other {
   if (other == self) return YES;
-  if (!other || ![[other class] isEqual:[self class]]) return NO;
+  if (![[other class] isEqual:[self class]]) return NO;
 
   return [self isEqualToDatabaseId:other];
 }
diff --git a/Firestore/Source/Model/FSTMutation.m b/Firestore/Source/Model/FSTMutation.m
index 375e289..c249138 100644
--- a/Firestore/Source/Model/FSTMutation.m
+++ b/Firestore/Source/Model/FSTMutation.m
@@ -97,7 +97,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 - (BOOL)isEqual:(id)other {
   if (other == self) return YES;
-  if (!other || ![[other class] isEqual:[self class]]) return NO;
+  if (![[other class] isEqual:[self class]]) return NO;
   FSTFieldTransform *otherFieldTransform = other;
   return [self.path isEqual:otherFieldTransform.path] &&
          [self.transform isEqual:otherFieldTransform.transform];