diff --git a/AFNetworking/AFHTTPSessionManager.h b/AFNetworking/AFHTTPSessionManager.h
index 57bdc05..8fcc2fc 100644
--- a/AFNetworking/AFHTTPSessionManager.h
+++ b/AFNetworking/AFHTTPSessionManager.h
@@ -68,7 +68,7 @@
  Also important to note is that a trailing slash will be added to any `baseURL` without one. This would otherwise cause unexpected behavior when constructing URLs using paths without a leading slash.
  */
 
-#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 70000) || (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090)
+#if (defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000) || (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1090)
 
 @interface AFHTTPSessionManager : AFURLSessionManager <NSCoding, NSCopying>
 
diff --git a/AFNetworking/AFHTTPSessionManager.m b/AFNetworking/AFHTTPSessionManager.m
index 3f1dedb..e2cea27 100644
--- a/AFNetworking/AFHTTPSessionManager.m
+++ b/AFNetworking/AFHTTPSessionManager.m
@@ -22,7 +22,7 @@
 
 #import "AFHTTPSessionManager.h"
 
-#if (defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 70000) || (defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090)
+#if (defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000) || (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 1090)
 
 #import "AFHTTPRequestOperation.h"