diff --git a/src/ViewerTest/ViewerTest_CmdParser.cxx b/src/ViewerTest/ViewerTest_CmdParser.cxx
index 04cb7d4b1c..a8619da144 100644
--- a/src/ViewerTest/ViewerTest_CmdParser.cxx
+++ b/src/ViewerTest/ViewerTest_CmdParser.cxx
@@ -21,6 +21,7 @@
 
 #include <algorithm>
 #include <iostream>
+#include <limits>
 
 namespace
 {