diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 5ed7183e5..955602cb0 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -32,6 +32,8 @@
 #include "cmGlobalUnixMakefileGenerator.h"
 #endif
 
+#include <stdio.h>
+
 cmake::cmake()
 {
   m_Verbose = false;