diff --git a/rpcs3/rpcs3qt/main_window.cpp b/rpcs3/rpcs3qt/main_window.cpp
index 9a1abe763a..2028716a48 100644
--- a/rpcs3/rpcs3qt/main_window.cpp
+++ b/rpcs3/rpcs3qt/main_window.cpp
@@ -1535,10 +1535,7 @@ void main_window::HandlePupInstallation(const QString& file_path, const QString&
 				if (update_file_stream->m_file_handler)
 				{
 					// Forcefully read all the data
-					update_file_stream->pop<char>();
-					update_file_stream->pos = umax;
-					update_file_stream->pos /= 2; // Avoid internal overflows
-					update_file_stream->m_file_handler->handle_file_op(*update_file_stream, update_file_stream->pos, 1, nullptr);
+					update_file_stream->m_file_handler->handle_file_op(*update_file_stream, 0, update_file_stream->get_size(umax), nullptr);
 				}
 
 				fs::file update_file = fs::make_stream(std::move(update_file_stream->data));