diff --git a/codex-rs/.cargo/config.toml b/codex-rs/.cargo/config.toml
index 7adeec500b..5d5eb8fd6f 100644
--- a/codex-rs/.cargo/config.toml
+++ b/codex-rs/.cargo/config.toml
@@ -1,11 +1,11 @@
 [target.'cfg(all(windows, target_env = "msvc"))']
-rustflags = [
-    "-C",
-    "link-arg=/STACK:8388608",
-    "-C",
-    "llvm-args=-function-sections",
-]
+rustflags = ["-C", "link-arg=/STACK:8388608"]
 
+# MSVC emits a warning about code that may trip "Cortex-A53 MPCore processor bug #843419" (see
+# https://developer.arm.com/documentation/epm048406/latest) which is sometimes emitted by LLVM.
+# Since Arm64 Windows 10+ isn't supported on that processor, it's safe to disable the warning.
+[target.aarch64-pc-windows-msvc]
+rustflags = ["-C", "link-arg=/STACK:8388608", "-C", "link-arg=/arm64hazardfree"]
 
 [target.'cfg(all(windows, target_env = "gnu"))']
 rustflags = ["-C", "link-arg=-Wl,--stack,8388608"]