diff --git a/sandbox/seccomp_bpf.target.darwin-arm.mk b/sandbox/seccomp_bpf.target.darwin-arm.mk
index 1989cb8..aebe3e6 100644
--- a/sandbox/seccomp_bpf.target.darwin-arm.mk
+++ b/sandbox/seccomp_bpf.target.darwin-arm.mk
@@ -78,6 +78,7 @@
 	'-DDISABLE_NACL' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
+	'-DENABLE_WEBRTC=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
 	'-DENABLE_CONFIGURATION_POLICY' \
 	'-DDISCARDABLE_MEMORY_ALWAYS_SUPPORTED_NATIVELY' \
@@ -163,6 +164,7 @@
 	'-DDISABLE_NACL' \
 	'-DCHROMIUM_BUILD' \
 	'-DUSE_LIBJPEG_TURBO=1' \
+	'-DENABLE_WEBRTC=1' \
 	'-DUSE_PROPRIETARY_CODECS' \
 	'-DENABLE_CONFIGURATION_POLICY' \
 	'-DDISCARDABLE_MEMORY_ALWAYS_SUPPORTED_NATIVELY' \