diff --git a/webrtc/BUILD.gn b/webrtc/BUILD.gn
index f8ffd49ee2..b5c832d4b6 100644
--- a/webrtc/BUILD.gn
+++ b/webrtc/BUILD.gn
@@ -43,7 +43,6 @@ config("common_inherited_config") {
       # TODO(kjellander): Cleanup unused ones and move defines closer to
       # the source when webrtc:4256 is completed.
       "FEATURE_ENABLE_VOICEMAIL",
-      "EXPAT_RELATIVE_PATH",
       "GTEST_RELATIVE_PATH",
       "WEBRTC_CHROMIUM_BUILD",
     ]
@@ -125,10 +124,6 @@ config("common_config") {
     defines += [ "WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE" ]
   }
 
-  if (rtc_relative_path) {
-    defines += [ "EXPAT_RELATIVE_PATH" ]
-  }
-
   if (!rtc_libvpx_build_vp9) {
     defines += [ "RTC_DISABLE_VP9" ]
   }
diff --git a/webrtc/webrtc.gni b/webrtc/webrtc.gni
index 72e031ee77..af4d6f97db 100644
--- a/webrtc/webrtc.gni
+++ b/webrtc/webrtc.gni
@@ -43,9 +43,6 @@ declare_args() {
   # Enable this to let the Opus audio codec change complexity on the fly.
   rtc_opus_variable_complexity = false
 
-  # Disable to use absolute header paths for some libraries.
-  rtc_relative_path = true
-
   # Used to specify an external Jsoncpp include path when not compiling the
   # library that comes with WebRTC (i.e. rtc_build_json == 0).
   rtc_jsoncpp_root = "//third_party/jsoncpp/source/include"