diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h b/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h
index 9b1efa0..a2dbee2 100644
--- a/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_capturer.h
@@ -17,6 +17,7 @@
 #include <string>
 #include <type_traits>
 #include <vector>
+#include <sys/types.h>
 
 // TODO(alcooper): Update include usage in downstream consumers and then change
 // this to a forward declaration.

.