diff --git a/pkg/sentry/platform/systrap/sysmsg/build.bzl b/pkg/sentry/platform/systrap/sysmsg/build.bzl
index 277dbf8b8..ec4886f78 100644
--- a/pkg/sentry/platform/systrap/sysmsg/build.bzl
+++ b/pkg/sentry/platform/systrap/sysmsg/build.bzl
@@ -23,6 +23,7 @@ def cc_pie_obj(name, srcs, outs):
               ) +
               " -fno-builtin " +
               "-ffreestanding " +
+              "-mgeneral-regs-only " +
               "-g " +
               "-Wa,--noexecstack " +
               "-fno-asynchronous-unwind-tables " +