diff --git a/deps/v8/gypfiles/toolchain.gypi b/deps/v8/gypfiles/toolchain.gypi
index 6da48e2282207c..f488461a00412b 100644
--- a/deps/v8/gypfiles/toolchain.gypi
+++ b/deps/v8/gypfiles/toolchain.gypi
@@ -1395,6 +1395,7 @@
     },  # configurations
     'cflags': [ '-Wno-type-limits', ],
     'msvs_disabled_warnings': [
+      4129,  # unrecognized character escape sequence (torque-generated)
       4245,  # Conversion with signed/unsigned mismatch.
       4267,  # Conversion with possible loss of data.
       4324,  # Padding structure due to alignment.