diff --git a/extra/js78/PKGBUILD b/extra/js78/PKGBUILD
index a5c2e3643..bf7b54bb0 100644
--- a/extra/js78/PKGBUILD
+++ b/extra/js78/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
 
 # ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
-#  - configure with --disable-lto
+#  - configure with --disable-lto, --disable-rust-simd
 #  - patch to fix build on ARM
 
 pkgname=js78
@@ -44,7 +44,7 @@ build() {
     --enable-optimize
     --enable-readline
     --enable-release
-    --enable-rust-simd
+    --disable-rust-simd
     --enable-shared-js
     --enable-tests
     --with-intl-api