diff --git a/lldb/source/API/SBQueue.cpp b/lldb/source/API/SBQueue.cpp
index feb5014b7f78..0860bf92967d 100644
--- a/lldb/source/API/SBQueue.cpp
+++ b/lldb/source/API/SBQueue.cpp
@@ -9,6 +9,8 @@
 
 #include "lldb/lldb-python.h"
 
+#include <inttypes.h>
+
 #include "lldb/API/SBQueue.h"
 
 #include "lldb/API/SBProcess.h"