diff --git a/webrtc/modules/rtp_rtcp/BUILD.gn b/webrtc/modules/rtp_rtcp/BUILD.gn
index a7499bc98..09fa3aca3 100644
--- a/webrtc/modules/rtp_rtcp/BUILD.gn
+++ b/webrtc/modules/rtp_rtcp/BUILD.gn
@@ -79,10 +79,10 @@ source_set("rtp_rtcp") {
     "source/rtp_sender_video.cc",
     "source/rtp_sender_video.h",
     "source/video_codec_information.h",
-    'source/rtp_format.cc',
-    'source/rtp_format.h',
-    'source/rtp_format_h264.cc',
-    'source/rtp_format_h264.h',
+    "source/rtp_format.cc",
+    "source/rtp_format.h",
+    "source/rtp_format_h264.cc",
+    "source/rtp_format_h264.h",
     "source/rtp_format_vp8.cc",
     "source/rtp_format_vp8.h",
     "source/rtp_format_video_generic.h",