diff --git a/test/test-functions b/test/test-functions
index a128a9cb65..32df08b79d 100644
--- a/test/test-functions
+++ b/test/test-functions
@@ -190,6 +190,7 @@ BASICTOOLS=(
     umount
     uname
     unshare
+    wc
     xargs
     xzcat
 )
@@ -1550,7 +1551,7 @@ 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