diff --git a/Classes/ASIHTTPRequest.m b/Classes/ASIHTTPRequest.m
index 8dd162c3..f6ddd884 100644
--- a/Classes/ASIHTTPRequest.m
+++ b/Classes/ASIHTTPRequest.m
@@ -4099,6 +4099,20 @@ - (id)copyWithZone:(NSZone *)zone
 	[newRequest setShouldAttemptPersistentConnection:[self shouldAttemptPersistentConnection]];
 	[newRequest setPersistentConnectionTimeoutSeconds:[self persistentConnectionTimeoutSeconds]];
     [newRequest setAuthenticationScheme:[self authenticationScheme]];
+#if NS_BLOCKS_AVAILABLE
+    [newRequest setStartedBlock:startedBlock];
+    [newRequest setHeadersReceivedBlock:headersReceivedBlock];
+    [newRequest setCompletionBlock:completionBlock];
+    [newRequest setFailedBlock:failureBlock];
+    [newRequest setBytesReceivedBlock:bytesReceivedBlock];
+    [newRequest setBytesSentBlock:bytesSentBlock];
+    [newRequest setDownloadSizeIncrementedBlock:downloadSizeIncrementedBlock];
+    [newRequest setUploadSizeIncrementedBlock:uploadSizeIncrementedBlock];
+    [newRequest setDataReceivedBlock:dataReceivedBlock];
+    [newRequest setAuthenticationNeededBlock:authenticationNeededBlock];
+    [newRequest setProxyAuthenticationNeededBlock:proxyAuthenticationNeededBlock];
+    [newRequest setRequestRedirectedBlock:requestRedirectedBlock];
+#endif
 	return newRequest;
 }