diff --git a/test/issue990-download-optional-selected.sh b/test/issue990-download-optional-selected.sh
index 8b548a3..f46e4ca 100755
--- a/test/issue990-download-optional-selected.sh
+++ b/test/issue990-download-optional-selected.sh
@@ -2,6 +2,6 @@
 
 . $(dirname "${BASH_SOURCE[0]}")/common.sh
 cd ${CURR_DIR}/issue990-download-optional-selected
-rm -rf b/.dub
+${DUB} clean
 ${DUB} remove gitcompatibledubpackage -n --version=* 2>/dev/null || true
 ${DUB} run