--- a/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h
@@ -11,6 +11,7 @@
 #ifndef MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURER_H_
 #define MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURER_H_
 
+#include <sys/types.h>
 #include <cstddef>
 #include <cstdint>
 #include <memory>