diff --git a/headers/private/netservices/UrlProtocolDispatchingListener.h b/headers/private/netservices/UrlProtocolDispatchingListener.h
index a81a73b23f..768e6a6473 100644
--- a/headers/private/netservices/UrlProtocolDispatchingListener.h
+++ b/headers/private/netservices/UrlProtocolDispatchingListener.h
@@ -54,10 +54,19 @@ public:
 	virtual void				DataReceived(BUrlRequest* caller,
 									const char* data, off_t position,
 									ssize_t size);
+
+#ifdef LIBNETAPI_DEPRECATED
 	virtual	void				DownloadProgress(BUrlRequest* caller,
 									ssize_t bytesReceived, ssize_t bytesTotal);
 	virtual void				UploadProgress(BUrlRequest* caller,
 									ssize_t bytesSent, ssize_t bytesTotal);
+#else
+	virtual	void				DownloadProgress(BUrlRequest* caller,
+									off_t bytesReceived, off_t bytesTotal);
+	virtual void				UploadProgress(BUrlRequest* caller,
+									off_t bytesSent, off_t bytesTotal);
+#endif
+
 	virtual void				RequestCompleted(BUrlRequest* caller,
 									bool success);
 	virtual void				DebugMessage(BUrlRequest* caller,
diff --git a/headers/private/netservices/UrlProtocolListener.h b/headers/private/netservices/UrlProtocolListener.h
index b6c28655ba..1870490ea7 100644
--- a/headers/private/netservices/UrlProtocolListener.h
+++ b/headers/private/netservices/UrlProtocolListener.h
@@ -44,10 +44,19 @@ public:
 	virtual void				DataReceived(BUrlRequest* caller,
 									const char* data, off_t position,
 									ssize_t size);
+
+#ifdef LIBNETAPI_DEPRECATED
 	virtual	void				DownloadProgress(BUrlRequest* caller,
 									ssize_t bytesReceived, ssize_t bytesTotal);
 	virtual void				UploadProgress(BUrlRequest* caller,
 									ssize_t bytesSent, ssize_t bytesTotal);
+#else
+	virtual	void				DownloadProgress(BUrlRequest* caller,
+									off_t bytesReceived, off_t bytesTotal);
+	virtual void				UploadProgress(BUrlRequest* caller,
+									off_t bytesSent, off_t bytesTotal);
+#endif
+
 	virtual void				RequestCompleted(BUrlRequest* caller,
 									bool success);
 	virtual void				DebugMessage(BUrlRequest* caller,
diff --git a/src/apps/haikudepot/server/WebAppInterface.cpp b/src/apps/haikudepot/server/WebAppInterface.cpp
index f85b7d9ae7..5e94317760 100644
--- a/src/apps/haikudepot/server/WebAppInterface.cpp
+++ b/src/apps/haikudepot/server/WebAppInterface.cpp
@@ -69,12 +69,12 @@ public:
 			fDownloadIO->Write(data, size);
 	}
 
-	virtual	void DownloadProgress(BUrlRequest* caller, ssize_t bytesReceived,
+	virtual	void DownloadProgress(BUrlRequest* caller, off_t bytesReceived,
 		ssize_t bytesTotal)
 	{
 	}
 
-	virtual void UploadProgress(BUrlRequest* caller, ssize_t bytesSent,
+	virtual void UploadProgress(BUrlRequest* caller, off_t bytesSent,
 		ssize_t bytesTotal)
 	{
 	}
diff --git a/src/apps/haikudepot/util/ToFileUrlProtocolListener.h b/src/apps/haikudepot/util/ToFileUrlProtocolListener.h
index 50c4d02533..20e13d3548 100644
--- a/src/apps/haikudepot/util/ToFileUrlProtocolListener.h
+++ b/src/apps/haikudepot/util/ToFileUrlProtocolListener.h
@@ -31,9 +31,9 @@ public:
 									const char* data, off_t position,
 									ssize_t size);
 			void				DownloadProgress(BUrlRequest* caller,
-									ssize_t bytesReceived, ssize_t bytesTotal);
+									off_t bytesReceived, ssize_t bytesTotal);
 			void				UploadProgress(BUrlRequest* caller,
-									ssize_t bytesSent, ssize_t bytesTotal);
+									off_t bytesSent, ssize_t bytesTotal);
 			void				RequestCompleted(BUrlRequest* caller,
 									bool success);
 			void				DebugMessage(BUrlRequest* caller,