diff --git a/.drone.yml b/.drone.yml
index 9e8041b..f70180b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -12,7 +12,7 @@ steps:
   image: tastytea/pkgcheck
   pull: always
   commands:
-  - for catpkg in $(ls -d *-*/*); do pkgcheck scan --net ${catpkg}; done
+  - for catpkg in $(ls -d *-*/*); do pkgcheck scan --net \${catpkg}; done
 
 - name: notify
   image: drillster/drone-email