diff --git a/AltStoreCore/Extensions/UserDefaults+AltStore.swift b/AltStoreCore/Extensions/UserDefaults+AltStore.swift
index 1e19ed56..0a60dd03 100644
--- a/AltStoreCore/Extensions/UserDefaults+AltStore.swift
+++ b/AltStoreCore/Extensions/UserDefaults+AltStore.swift
@@ -82,8 +82,14 @@ public extension UserDefaults
         let ios14 = OperatingSystemVersion(majorVersion: 14, minorVersion: 0, patchVersion: 0)
         let localServerSupportsRefreshing = !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios14)
         
+        let ios16 = OperatingSystemVersion(majorVersion: 16, minorVersion: 0, patchVersion: 0)
         let ios16_2 = OperatingSystemVersion(majorVersion: 16, minorVersion: 2, patchVersion: 0)
-        let isMacDirtyCowSupported = ProcessInfo.processInfo.isOperatingSystemAtLeast(ios14) && !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios16_2) // MacDirtyCow supports iOS 14.0 - 16.1.2
+        let ios15_7_2 = OperatingSystemVersion(majorVersion: 15, minorVersion: 7, patchVersion: 2)
+        
+        // MacDirtyCow supports iOS 14.0 - 15.7.1 OR 16.0 - 16.1.2
+        let isMacDirtyCowSupported =
+        (ProcessInfo.processInfo.isOperatingSystemAtLeast(ios14) && !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios15_7_2)) ||
+        (ProcessInfo.processInfo.isOperatingSystemAtLeast(ios16) && !ProcessInfo.processInfo.isOperatingSystemAtLeast(ios16_2))
         
         let defaults = [
             #keyPath(UserDefaults.isAppLimitDisabled): false,