diff --git a/run-vmtest/run.sh b/run-vmtest/run.sh
index c8d5306..1b8b44e 100755
--- a/run-vmtest/run.sh
+++ b/run-vmtest/run.sh
@@ -30,13 +30,14 @@ foldable end bpftool_checks
 
 foldable start vmtest "Starting virtual machine..."
 
+# Tests may be comma-separated. vmtest_selftest expect them to come from CLI space-separated.
+T=$(echo ${KERNEL_TEST} | tr -s ',' ' ')
 # HACK: We need to unmount /tmp to access /tmp from the container....
-
 vmtest -k "${VMLINUZ}" --kargs "panic=-1 sysctl.vm.panic_on_oom=1" "umount /tmp && \
         	/bin/mount bpffs /sys/fs/bpf -t bpf && \
             ip link set lo up && \
             cd '${GITHUB_WORKSPACE}' && \
-            ./ci/vmtest/vmtest_selftests.sh ${KERNEL_TEST}"
+            ./ci/vmtest/vmtest_selftests.sh ${T}"
 
 foldable end vmtest