diff --git a/ci/regression.sh b/ci/regression.sh
index 13d8136d..eb00b259 100755
--- a/ci/regression.sh
+++ b/ci/regression.sh
@@ -15,6 +15,9 @@ set -e
 CONFIGS=-DEXT_M_DISABLE make -C hw/simulate
 CONFIGS=-DEXT_F_DISABLE make -C hw/simulate
 
+# disable shared memory
+CONFIGS=-DSM_ENABLE=0 make -C hw/simulate
+
 # Blackbox tests
 ./ci/travis_run.py ./ci/blackbox.sh --driver=vlsim --cores=1 --perf --app=demo --args="-n1"
 ./ci/travis_run.py ./ci/blackbox.sh --driver=vlsim --cores=1 --debug --app=demo --args="-n1"