diff --git a/scripts/test/test-utils.sh b/scripts/test/test-utils.sh
index 1ef608b..5e83c26 100644
--- a/scripts/test/test-utils.sh
+++ b/scripts/test/test-utils.sh
@@ -163,15 +163,15 @@ prepare_ssh_keys() {
     sudo chown -R root:root tests/ssh-public-key-overlay/root
   fi
   if [ "$(stat -c %a tests/ssh-public-key-overlay/root)" != "755" ]; then
-    chmod 755 tests/ssh-public-key-overlay/root
+    sudo chmod 755 tests/ssh-public-key-overlay/root
   fi
   if [ "$(stat -c %a tests/ssh-public-key-overlay/root/.ssh)" != "755" ]; then
-    chmod 700 tests/ssh-public-key-overlay/root/.ssh
+    sudo chmod 700 tests/ssh-public-key-overlay/root/.ssh
   fi
   if [ "$(stat -c %a tests/ssh-public-key-overlay/root/.ssh/authorized_keys)" != "755" ]; then
-    chmod 600 tests/ssh-public-key-overlay/root/.ssh/authorized_keys
+    sudo chmod 600 tests/ssh-public-key-overlay/root/.ssh/authorized_keys
   fi
   if [ "$(stat -c %a tests/ssh-priv-key/key)" != "600" ]; then
-    chmod 600 tests/ssh-priv-key/key
+    sudo chmod 600 tests/ssh-priv-key/key
   fi
 }