diff --git a/build_library/catalyst_toolchains.sh b/build_library/catalyst_toolchains.sh
index 2ab4c46dae..f5ef591e5f 100644
--- a/build_library/catalyst_toolchains.sh
+++ b/build_library/catalyst_toolchains.sh
@@ -35,6 +35,11 @@ build_target_toolchain() {
     # --root is required because run_merge overrides ROOT=
     PORTAGE_CONFIGROOT="$ROOT" \
         run_merge -u --root="$ROOT" --sysroot="$ROOT" "${TOOLCHAIN_PKGS[@]}"
+
+    export clst_myemergeopts="$( echo "$clst_myemergeopts" | sed -e 's/--newuse//' )"
+
+    PORTAGE_CONFIGROOT="$ROOT" \
+        run_merge --root="$ROOT" --sysroot="$ROOT" dev-lang/rust
 }
 
 configure_crossdev_overlay / /tmp/crossdev