diff --git a/dom/media/gmp/rlz/GMPDeviceBinding.cpp b/dom/media/gmp/rlz/GMPDeviceBinding.cpp
index 04def8e8e0..8457fb8d53 100644
--- a/dom/media/gmp/rlz/GMPDeviceBinding.cpp
+++ b/dom/media/gmp/rlz/GMPDeviceBinding.cpp
@@ -7,6 +7,7 @@
 #include "mozilla/Attributes.h"
 #include "prenv.h"
 
+#include <cstdint>
 #include <string>
 
 #ifdef XP_WIN
diff --git a/dom/media/gmp/rlz/GMPDeviceBinding.h b/dom/media/gmp/rlz/GMPDeviceBinding.h
index ee16644661..c5940e5b60 100644
--- a/dom/media/gmp/rlz/GMPDeviceBinding.h
+++ b/dom/media/gmp/rlz/GMPDeviceBinding.h
@@ -6,6 +6,7 @@
 #ifndef GMP_DEVICE_BINDING_h_
 #define GMP_DEVICE_BINDING_h_
 
+#include <cstdint>
 #include <string>
 
 namespace mozilla {