diff --git a/iOS/DoraemonKit/Src/Core/Plugin/Hierarchy/Function/Category/NSObject+DoraemonHierarchy.m b/iOS/DoraemonKit/Src/Core/Plugin/Hierarchy/Function/Category/NSObject+DoraemonHierarchy.m
index 253915de9a5a599da954024d16b31aba7ce3d55e..4402986db3ee984c31a31096f521f6d8aff46cf0 100644
--- a/iOS/DoraemonKit/Src/Core/Plugin/Hierarchy/Function/Category/NSObject+DoraemonHierarchy.m
+++ b/iOS/DoraemonKit/Src/Core/Plugin/Hierarchy/Function/Category/NSObject+DoraemonHierarchy.m
@@ -1224,9 +1224,11 @@ NSNotificationName const DoraemonHierarchyChangeNotificationName = @"DoraemonHie
             if (index <= UIActivityIndicatorViewStyleGray) {
                 weakSelf.activityIndicatorViewStyle = index;
             } else {
+                #if defined(__IPHONE_13_0) && (__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_13_0)
                 if (@available(iOS 13.0, *)) {
                     weakSelf.activityIndicatorViewStyle = index + (UIActivityIndicatorViewStyleMedium - UIActivityIndicatorViewStyleGray - 1);
                 }
+                #endif
             }
 #pragma clang diagnostic pop
         }];