diff --git a/support/tools/TableGen/TableGen.cpp b/support/tools/TableGen/TableGen.cpp
index 8c9f550bcc4..85a63ceaf6a 100644
--- a/support/tools/TableGen/TableGen.cpp
+++ b/support/tools/TableGen/TableGen.cpp
@@ -17,6 +17,7 @@
 #include "InstrInfoEmitter.h"
 #include "InstrSelectorEmitter.h"
 #include <algorithm>
+#include <cstdio>
 #include <fstream>
 
 enum ActionType {
diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
index 8c9f550bcc4..85a63ceaf6a 100644
--- a/utils/TableGen/TableGen.cpp
+++ b/utils/TableGen/TableGen.cpp
@@ -17,6 +17,7 @@
 #include "InstrInfoEmitter.h"
 #include "InstrSelectorEmitter.h"
 #include <algorithm>
+#include <cstdio>
 #include <fstream>
 
 enum ActionType {