diff --git a/mozilla/content/html/style/src/nsCSSParser.cpp b/mozilla/content/html/style/src/nsCSSParser.cpp
index 7589efd15ff..beaf068a7a2 100644
--- a/mozilla/content/html/style/src/nsCSSParser.cpp
+++ b/mozilla/content/html/style/src/nsCSSParser.cpp
@@ -38,6 +38,8 @@
  * the terms of any one of the NPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
+
+#include <stdio.h>
 #include "nsICSSParser.h"
 #include "nsCSSProps.h"
 #include "nsCSSKeywords.h"
diff --git a/mozilla/layout/style/nsCSSParser.cpp b/mozilla/layout/style/nsCSSParser.cpp
index 7589efd15ff..beaf068a7a2 100644
--- a/mozilla/layout/style/nsCSSParser.cpp
+++ b/mozilla/layout/style/nsCSSParser.cpp
@@ -38,6 +38,8 @@
  * the terms of any one of the NPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
+
+#include <stdio.h>
 #include "nsICSSParser.h"
 #include "nsCSSProps.h"
 #include "nsCSSKeywords.h"