diff --git a/run-scripts.ts b/run-scripts.ts
index f87d654..ffe94c1 100644
--- a/run-scripts.ts
+++ b/run-scripts.ts
@@ -64,8 +64,10 @@ const runScripts = {
          const logItems = settings.verbose ? [chalk.white(group), chalk.yellow(step), arrow] : [];
          logger(...logItems, chalk.cyanBright(command));
          const task = spawnSync(command, { shell: true, stdio: 'inherit' });
+         const errorMessage = () =>
+            `[run-scripts-util] Task: ${group} (step ${step}), Status: ${task.status}`;
          if (task.status !== 0)
-            throw Error(`[run-scripts-util] ${group} #${step}, error status: ${task.status}`);
+            throw Error(errorMessage() + '\nCommand: ' + command);
          logger(...logItems, chalk.green('done'), chalk.white(`(${Date.now() - startTime}ms)`));
          };
       const active = (step: number) => settings.only === null || step === settings.only;
diff --git a/spec/mocha.spec.js b/spec/mocha.spec.js
index dc9d82a..fac4052 100644
--- a/spec/mocha.spec.js
+++ b/spec/mocha.spec.js
@@ -73,12 +73,13 @@ describe('Correct error is thrown', () => {
 
 ////////////////////////////////////////////////////////////////////////////////
 describe('Executing the CLI', () => {
+   const cmd = (posix) => process.platform === 'win32' ? posix.replaceAll('\\ ', '" "') : posix;
+   const run = (posix) => execSync(cmd(posix), { stdio: 'inherit' });
 
    it('correctly runs parallel commands', () => {
       // Handy script:
       //    "devp": "tsc && add-dist-header build dist && rimraf spec/fixtures/target/b && mocha spec/*.spec.js --grep parallel --timeout 7000",
-      const cmd = 'node bin/cli.js spec-b1 spec-b2 --parallel --verbose';
-      execSync(cmd, { stdio: 'inherit' });
+      run('node bin/cli.js spec-b1 spec-b2 --parallel --verbose');
       const actual = revWebAssets.readFolderRecursive('spec/fixtures/target/b');
       const expected = [
          'spec/fixtures/target/b/1/w.json',
@@ -92,8 +93,7 @@ describe('Executing the CLI', () => {
       });
 
    it('with two command groups correctly runs them in serial', () => {
-      const cmd = 'node bin/cli.js spec-c1 spec-c2 --note=hello --quiet';
-      execSync(cmd, { stdio: 'inherit' });
+      run('node bin/cli.js spec-c1 spec-c2 --note=hello --quiet');
       const actual = revWebAssets.readFolderRecursive('spec/fixtures/target/c');
       const expected = [
          'spec/fixtures/target/c/2/last.txt',