1 files changed, 2 insertions, 1 deletions
diff --git a/util/abuild/abuild b/util/abuild/abuild
index 9516da51d533..788ed7d0db78 100755
--- a/util/abuild/abuild
+++ b/util/abuild/abuild
@@ -479,7 +479,8 @@ chromeos=false
 clean_work=false
 customizing=""
 configoptions=""
-testclass=
+# testclass needs to be undefined if not used for variable expansion to work
+unset testclass
 while true ; do
 	case "$1" in
 		-J|--junit)     shift; mode=junit; rm -f $XMLFILE ;;