diff --git a/avatar/src/AvatarAgentData.cpp b/avatar/src/AvatarAgentData.cpp
index 9a79954cdf..0ee5981c53 100644
--- a/avatar/src/AvatarAgentData.cpp
+++ b/avatar/src/AvatarAgentData.cpp
@@ -6,6 +6,8 @@
 //
 //
 
+#include <cstdio>
+
 #include "AvatarAgentData.h"
 
 AvatarAgentData::AvatarAgentData() {