diff --git a/generators/workspace/index.js b/generators/workspace/index.js
index 30a4a7bf..a46b5647 100644
--- a/generators/workspace/index.js
+++ b/generators/workspace/index.js
@@ -161,7 +161,7 @@ class Generator extends Base {
       // no pre post test tasks
       Object.keys(pkg.scripts).filter((s) => !/^(pre|post).*/g.test(s)).forEach((s) => {
         // generate scoped tasks
-        scripts[`${s}:${p}`] = `cd ${p} && npm run ${s}`;
+        scripts[`${s}:${p}`] = `cd ${p} && npm run ${s} --`; // add `--` in order to be able to pass arguments to the script
       });
       if (pkg.scripts.start) {
         // start script, generate one with the package name
@@ -265,7 +265,7 @@ class Generator extends Base {
         // no pre post test tasks
         cmds.filter((s) => toPatch.test(s)).forEach((s) => {
           // generate scoped tasks
-          let cmd = `.${path.sep}withinEnv "exec 'cd ${p} && npm run ${s}'"`;
+          let cmd = `.${path.sep}withinEnv "exec 'cd ${p} && npm run ${s}'" --`;
           if (/^(start|watch)/g.test(s)) {
             // special case for start to have the right working directory
             let fixedscript = pkg.scripts[s].replace(/__main__\.py/, p);