diff --git a/tests.sh b/tests.sh
index f6c53678e..d5ef4da65 100755
--- a/tests.sh
+++ b/tests.sh
@@ -4,7 +4,7 @@
 # it is written only for internal tests via Travis CI
 
 TDIR=build/local_prefix/opt/hermit/x86_64-hermit/extra
-FILES="$TDIR/tests/hello $TDIR/tests/hellof $TDIR/tests/hello++ $TDIR/tests/thr_hello $TDIR/tests/pi $TDIR/benchmarks/stream $TDIR/benchmarks/basic $TDIR/tests/signals $TDIR/tests/test-malloc"
+FILES="$TDIR/tests/hello $TDIR/tests/hellof $TDIR/tests/hello++ $TDIR/tests/thr_hello $TDIR/tests/pi $TDIR/benchmarks/stream $TDIR/benchmarks/basic $TDIR/tests/signals $TDIR/tests/test-malloc $TDIR/tests/test-malloc-mt"
 PROXY=build/local_prefix/opt/hermit/bin/proxy
 
 for f in $FILES; do echo "check $f..."; HERMIT_ISLE=qemu HERMIT_CPUS=1 HERMIT_KVM=0 HERMIT_VERBOSE=1 timeout --kill-after=5m 5m $PROXY $f || exit 1; done