diff --git a/DropBlocks/Classes/DropBlocks.h b/DropBlocks/Classes/DropBlocks.h
index 50ad010..b2ab290 100644
--- a/DropBlocks/Classes/DropBlocks.h
+++ b/DropBlocks/Classes/DropBlocks.h
@@ -18,6 +18,7 @@ typedef void (^LoadThumbnailCallback)(DBMetadata *metadata, NSError *error);
 typedef void (^UploadFileCallback)(NSString*, DBMetadata *metadata, NSError *error);
 typedef void (^UploadFileProgressCallback)(CGFloat progress);
 typedef void (^UploadFileChunkCallback)(NSString *uploadId, unsigned long long offset, NSDate *expiresDate, NSError *error);
+typedef void (^UploadFileChunkProgressCallback)(CGFloat progress);
 typedef void (^LoadRevisionsCallback)(NSArray *revisions, NSError *error);
 typedef void (^RestoreFileCallback)(DBMetadata *metadata, NSError *error);
 typedef void (^CreateFolderCallback)(DBMetadata *metadata, NSError *error);
@@ -48,7 +49,7 @@ typedef void (^LoadSharableLinkCallback)(NSString *link, NSError *error);
 
 + (void)uploadFile:(NSString *)filename toPath:(NSString *)path withParentRev:(NSString *)parentRev fromPath:(NSString *)sourcePath completionBlock:(UploadFileCallback)completionBlock progressBlock:(UploadFileProgressCallback)progressBlock;
 
-+ (void)uploadFileChunk:(NSString *)uploadId offset:(unsigned long long)offset fromPath:(NSString *)localPath completionBlock:(UploadFileChunkCallback)completionBlock;
++ (void)uploadFileChunk:(NSString *)uploadId offset:(unsigned long long)offset fromPath:(NSString *)localPath completionBlock:(UploadFileChunkCallback)completionBlock progressBlock:(UploadFileChunkProgressCallback)progressBlock;
 
 + (void)uploadFile:(NSString *)filename toPath:(NSString *)parentFolder withParentRev:(NSString *)parentRev fromUploadId:(NSString *)uploadId completionBlock:(UploadFileCallback)completionBlock;
 
diff --git a/DropBlocks/Classes/DropBlocks.m b/DropBlocks/Classes/DropBlocks.m
index f1063a3..d511b2c 100644
--- a/DropBlocks/Classes/DropBlocks.m
+++ b/DropBlocks/Classes/DropBlocks.m
@@ -109,8 +109,10 @@ + (void)uploadFile:(NSString *)filename toPath:(NSString *)path withParentRev:(N
 //- (void)uploadFile:(NSString*)filename toPath:(NSString*)path fromPath:(NSString *)sourcePath __attribute__((deprecated));
 
 
-+ (void)uploadFileChunk:(NSString *)uploadId offset:(unsigned long long)offset fromPath:(NSString *)localPath completionBlock:(UploadFileChunkCallback)completionBlock {
-	[[DropBlocks newInstanceWithCallback:completionBlock].restClient uploadFileChunk:uploadId offset:offset fromPath:localPath];
++ (void)uploadFileChunk:(NSString *)uploadId offset:(unsigned long long)offset fromPath:(NSString *)localPath completionBlock:(UploadFileChunkCallback)completionBlock progressBlock:(UploadFileChunkProgressCallback)progressBlock {
+    DropBlocks* db = [DropBlocks newInstanceWithCallback:completionBlock];
+	db.secondaryCallback = progressBlock;
+	[db.restClient uploadFileChunk:uploadId offset:offset fromPath:localPath];
 }
 
 + (void)uploadFile:(NSString *)filename toPath:(NSString *)parentFolder withParentRev:(NSString *)parentRev fromUploadId:(NSString *)uploadId completionBlock:(UploadFileCallback)completionBlock {
@@ -321,6 +323,18 @@ - (void)restClient:(DBRestClient *)client uploadFileChunkFailedWithError:(NSErro
 	[strongSelf cleanup];
 }
 
+- (void)restClient:(DBRestClient *)client uploadFileChunkProgress:(CGFloat)progress
+           forFile:(NSString *)uploadId offset:(unsigned long long)offset fromPath:(NSString *)localPath {
+	//we can run into dealloc problems unless we keep a strong reference to ourselves till the method is done
+	DropBlocks* strongSelf = self;
+	UploadFileProgressCallback handler = strongSelf.secondaryCallback;
+    
+	if (handler) {
+		handler(progress);
+	}
+    
+}
+
 - (void)restClient:(DBRestClient *)client uploadedFile:(NSString *)destPath fromUploadId:(NSString *)uploadId
 		  metadata:(DBMetadata *)metadata {
 	//we can run into dealloc problems unless we keep a strong reference to ourselves till the method is done