diff --git a/engine/shared/library/sharedFoundation/src/shared/FormattedString.h b/engine/shared/library/sharedFoundation/src/shared/FormattedString.h
index e6e1fb26..b4e1f6de 100644
--- a/engine/shared/library/sharedFoundation/src/shared/FormattedString.h
+++ b/engine/shared/library/sharedFoundation/src/shared/FormattedString.h
@@ -8,6 +8,8 @@
 #ifndef INCLUDED_FormattedString_H
 #define INCLUDED_FormattedString_H
 
+#include <cstdio>
+
 // ----------------------------------------------------------------------
 template <int bufferSize>
 class FormattedString