diff --git a/tools/progress.cpp b/tools/progress.cpp
index aafb1de..68b31cc 100644
--- a/tools/progress.cpp
+++ b/tools/progress.cpp
@@ -39,4 +39,10 @@
     currentBytes = 0;
 }
 
+void ProgressStdoutIndicator::finish()
+{}
+
+void ProgressStdoutIndicator::abort()
+{}
+
 } // namespace host_tool