diff --git a/modules/iSACFix.target.darwin-arm.mk b/modules/iSACFix.target.darwin-arm.mk
index e86dc13..e6f2647 100644
--- a/modules/iSACFix.target.darwin-arm.mk
+++ b/modules/iSACFix.target.darwin-arm.mk
@@ -126,6 +126,7 @@
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
 	'-DVIDEO_HOLE=1' \
 	'-DWEBRTC_RESTRICT_LOGGING' \
+	'-DEXPAT_RELATIVE_PATH' \
 	'-DWEBRTC_MODULE_UTILITY_VIDEO' \
 	'-DWEBRTC_CHROMIUM_BUILD' \
 	'-DLOGGING_INSIDE_WEBRTC' \
@@ -254,6 +255,7 @@
 	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
 	'-DVIDEO_HOLE=1' \
 	'-DWEBRTC_RESTRICT_LOGGING' \
+	'-DEXPAT_RELATIVE_PATH' \
 	'-DWEBRTC_MODULE_UTILITY_VIDEO' \
 	'-DWEBRTC_CHROMIUM_BUILD' \
 	'-DLOGGING_INSIDE_WEBRTC' \