diff --git a/Source/CTest/cmProcess.cxx b/Source/CTest/cmProcess.cxx
index a109b3f17..97a10300a 100644
--- a/Source/CTest/cmProcess.cxx
+++ b/Source/CTest/cmProcess.cxx
@@ -16,7 +16,6 @@
 =========================================================================*/
 
 #include <cmProcess.h>
-#include <iostream>
 
 cmProcess::cmProcess()
 {