diff --git a/tests/nightly.sh b/tests/nightly.sh
index de90d61ecf..bbed675394 100755
--- a/tests/nightly.sh
+++ b/tests/nightly.sh
@@ -179,6 +179,7 @@ cd -;
 build_and_run_SST RISCV opt
 
 build_and_run_systemc () {
+    rm -rf "${gem5_root}/build/ARM"
     docker run -u $UID:$GID --volume "${gem5_root}":"${gem5_root}" -w \
         "${gem5_root}" --memory="${docker_mem_limit}" --rm \
         gcr.io/gem5-test/ubuntu-20.04_all-dependencies:latest bash -c "\