diff --git a/tests/install_rust.sh b/tests/install_rust.sh
index b44b94be7..65a075ba9 100755
--- a/tests/install_rust.sh
+++ b/tests/install_rust.sh
@@ -35,11 +35,11 @@ export PATH="${PATH}:${HOME}/.cargo/bin"
 ## this command will not take too long to run.
 rustup toolchain install ${version}
 rustup default ${version}
-if [ "${rustarch}" == "powerpc64le" ] || [ "${rustarch}" == "s390x" ] ; then
-	rustup target add ${rustarch}-unknown-linux-gnu
-else
+if [ "${rustarch}" == "x86_64" ] || [ "${rustarch}" == "aarch64" ] ; then
 	rustup target add ${rustarch}-unknown-linux-musl
 	$([ "$(whoami)" != "root" ] && echo sudo) ln -sf /usr/bin/g++ /bin/musl-g++
+else
+	rustup target add ${rustarch}-unknown-linux-gnu
 fi
 rustup component add rustfmt
 rustup component add clippy