diff --git a/source/Utility/PseudoTerminal.cpp b/source/Utility/PseudoTerminal.cpp
index 9bbecae..6c95830 100644
--- a/source/Utility/PseudoTerminal.cpp
+++ b/source/Utility/PseudoTerminal.cpp
@@ -12,6 +12,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 #include <sys/ioctl.h>
 
 using namespace lldb_utility;