diff --git a/AFNetworking.podspec b/AFNetworking.podspec
index 1368a55..f14d101 100644
--- a/AFNetworking.podspec
+++ b/AFNetworking.podspec
@@ -18,8 +18,6 @@ Pod::Spec.new do |s|
   s.prefix_header_contents = <<-EOS
 #import <Availability.h>
 
-#define _AFNETWORKING_PIN_SSL_CERTIFICATES_
-
 #if __IPHONE_OS_VERSION_MIN_REQUIRED
   #import <SystemConfiguration/SystemConfiguration.h>
   #import <MobileCoreServices/MobileCoreServices.h>
diff --git a/Tests/AFNetworking-Prefix.pch b/Tests/AFNetworking-Prefix.pch
index 6f34220..59f8ee7 100644
--- a/Tests/AFNetworking-Prefix.pch
+++ b/Tests/AFNetworking-Prefix.pch
@@ -2,8 +2,6 @@
 // Prefix header for all source files of the 'AFNetworking' target in the 'AFNetworking' project
 //
 
-#define _AFNETWORKING_PIN_SSL_CERTIFICATES_
-
 #ifdef __OBJC__
     #import <Foundation/Foundation.h>