diff --git a/tests-ng/env.sh b/tests-ng/env.sh
index 5416385..34710b4 100755
--- a/tests-ng/env.sh
+++ b/tests-ng/env.sh
@@ -133,7 +133,7 @@ export DOTDROP_CONFIG="${cfg}"
 export DOTDROP_PROFILE="p1"
 export DOTDROP_VERBOSE="yes"
 unset DOTDROP_FORCE_NODEBUG
-unset DOTDROP_NOBANNER=
+unset DOTDROP_NOBANNER
 export DOTDROP_TMPDIR="${tmpx}"
 export DOTDROP_WORKDIR="${tmpy}"
 export DOTDROP_WORKERS="1"