diff --git a/SDWebImage/Core/SDWebImagePrefetcher.m b/SDWebImage/Core/SDWebImagePrefetcher.m
index cc6a3e24..b6632fa6 100644
--- a/SDWebImage/Core/SDWebImagePrefetcher.m
+++ b/SDWebImage/Core/SDWebImagePrefetcher.m
@@ -22,7 +22,7 @@
     unsigned long _totalCount;
     
     // Used to ensure NSPointerArray thread safe
-    SD_LOCK_DECLARE(_prefetchOperationsLock)
+    SD_LOCK_DECLARE(_prefetchOperationsLock);
     SD_LOCK_DECLARE(_loadOperationsLock);
 }
 
diff --git a/SDWebImage/Private/SDInternalMacros.h b/SDWebImage/Private/SDInternalMacros.h
index 46352db5..8589a74e 100644
--- a/SDWebImage/Private/SDInternalMacros.h
+++ b/SDWebImage/Private/SDInternalMacros.h
@@ -11,9 +11,15 @@
 #import <libkern/OSAtomic.h>
 #import "SDmetamacros.h"
 
+#define SD_USE_OS_UNFAIR_LOCK TARGET_OS_MACCATALYST ||\
+    (__IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_10_0) ||\
+    (__MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_12) ||\
+    (__TV_OS_VERSION_MIN_REQUIRED >= __TVOS_10_0) ||\
+    (__WATCH_OS_VERSION_MIN_REQUIRED >= __WATCHOS_3_0)
+
 #ifndef SD_LOCK_DECLARE
-#if TARGET_OS_MACCATALYST
-#define SD_LOCK_DECLARE(lock) os_unfair_lock lock;
+#if SD_USE_OS_UNFAIR_LOCK
+#define SD_LOCK_DECLARE(lock) os_unfair_lock lock
 #else
 #define SD_LOCK_DECLARE(lock) os_unfair_lock lock API_AVAILABLE(ios(10.0), tvos(10), watchos(3), macos(10.12)); \
 OSSpinLock lock##_deprecated;
@@ -21,8 +27,8 @@ OSSpinLock lock##_deprecated;
 #endif
 
 #ifndef SD_LOCK_INIT
-#if TARGET_OS_MACCATALYST
-#define SD_LOCK_INIT(lock) lock = OS_UNFAIR_LOCK_INIT;
+#if SD_USE_OS_UNFAIR_LOCK
+#define SD_LOCK_INIT(lock) lock = OS_UNFAIR_LOCK_INIT
 #else
 #define SD_LOCK_INIT(lock) if (@available(iOS 10, tvOS 10, watchOS 3, macOS 10.12, *)) lock = OS_UNFAIR_LOCK_INIT; \
 else lock##_deprecated = OS_SPINLOCK_INIT;
@@ -30,8 +36,8 @@ else lock##_deprecated = OS_SPINLOCK_INIT;
 #endif
 
 #ifndef SD_LOCK
-#if TARGET_OS_MACCATALYST
-#define SD_LOCK(lock) os_unfair_lock_lock(&lock);
+#if SD_USE_OS_UNFAIR_LOCK
+#define SD_LOCK(lock) os_unfair_lock_lock(&lock)
 #else
 #define SD_LOCK(lock) if (@available(iOS 10, tvOS 10, watchOS 3, macOS 10.12, *)) os_unfair_lock_lock(&lock); \
 else OSSpinLockLock(&lock##_deprecated);
@@ -39,8 +45,8 @@ else OSSpinLockLock(&lock##_deprecated);
 #endif
 
 #ifndef SD_UNLOCK
-#if TARGET_OS_MACCATALYST
-#define SD_UNLOCK(lock) os_unfair_lock_unlock(&lock);
+#if SD_USE_OS_UNFAIR_LOCK
+#define SD_UNLOCK(lock) os_unfair_lock_unlock(&lock)
 #else
 #define SD_UNLOCK(lock) if (@available(iOS 10, tvOS 10, watchOS 3, macOS 10.12, *)) os_unfair_lock_unlock(&lock); \
 else OSSpinLockUnlock(&lock##_deprecated);