diff --git a/Source/cmCMakeMinimumRequired.cxx b/Source/cmCMakeMinimumRequired.cxx
index 6be31de0d7..a8e89e8bba 100644
--- a/Source/cmCMakeMinimumRequired.cxx
+++ b/Source/cmCMakeMinimumRequired.cxx
@@ -15,6 +15,7 @@
 
 =========================================================================*/
 #include "cmCMakeMinimumRequired.h"
+#include "stdio.h"
 
 // cmCMakeMinimumRequired
 bool cmCMakeMinimumRequired::InitialPass(std::vector<std::string> const& args)