diff --git a/OAuth/FirebaseOAuthUI/FUIOAuth.m b/OAuth/FirebaseOAuthUI/FUIOAuth.m
index eed1b1b3515..d7a367fa727 100644
--- a/OAuth/FirebaseOAuthUI/FUIOAuth.m
+++ b/OAuth/FirebaseOAuthUI/FUIOAuth.m
@@ -195,7 +195,7 @@ + (FUIOAuth *)appleAuthProvider {
                             fromBundleNameOrNil:@"FirebaseOAuthUI"];
   UIColor *buttonColor = [UIColor blackColor];
   UIColor *buttonTextColor = [UIColor whiteColor];
-  if (UITraitCollection.currentTraitCollection.userInterfaceStyle == UIUserInterfaceStyleLight) {
+  if (UITraitCollection.currentTraitCollection.userInterfaceStyle == UIUserInterfaceStyleDark) {
     iconImage = [iconImage imageWithTintColor:[UIColor blackColor]];
     buttonColor = [UIColor whiteColor];
     buttonTextColor = [UIColor blackColor];