diff --git a/js/src/builtin/intl/PluralRules.cpp b/js/src/builtin/intl/PluralRules.cpp
index 78a2f3a847..cc61ff8885 100644
--- a/js/src/builtin/intl/PluralRules.cpp
+++ b/js/src/builtin/intl/PluralRules.cpp
@@ -6,6 +6,7 @@
 
 /* Implementation of the Intl.PluralRules proposal. */
 
+#include "builtin/intl/NumberFormat.h"
 #include "builtin/intl/PluralRules.h"
 
 #include "mozilla/Assertions.h"
diff --git a/js/src/builtin/intl/SharedIntlData.cpp b/js/src/builtin/intl/SharedIntlData.cpp
index 8ae3c17fe2..fbcf134daf 100644
--- a/js/src/builtin/intl/SharedIntlData.cpp
+++ b/js/src/builtin/intl/SharedIntlData.cpp
@@ -14,6 +14,7 @@
 #include <stdint.h>
 
 #include "jsatom.h"
+#include "jscntxt.h"
 #include "jsstr.h"
 
 #include "builtin/intl/CommonFunctions.h"