diff --git a/test/test-functions b/test/test-functions
index 8ed0dbfe06b..65bc19f77b5 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -1539,7 +1539,7 @@ install_basic_tools() {
 
 install_debug_tools() {
     dinfo "Install debug tools"
-    image_install "${DEBUGTOOLS[@]}"
+    image_install -o "${DEBUGTOOLS[@]}"
 
     if get_bool "$INTERACTIVE_DEBUG"; then
         # Set default TERM from vt220 to linux, so at least basic key shortcuts work