diff --git a/lib/cli/run.js b/lib/cli/run.js
index 160315cd75..4a4da6cf68 100644
--- a/lib/cli/run.js
+++ b/lib/cli/run.js
@@ -99,7 +99,7 @@ exports.builder = yargs =>
         coerce: list
       },
       'fail-zero': {
-        description: 'Fail if no test(s) encountered',
+        description: 'Fail test run if no test(s) encountered',
         group: GROUPS.RULES
       },
       fgrep: {
diff --git a/lib/runner.js b/lib/runner.js
index 4940674180..7f9184fc1a 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -139,7 +139,7 @@ class Runner extends EventEmitter {
    * @param {boolean} [opts.cleanReferencesAfterRun] - Whether to clean references to test fns and hooks when a suite is done.
    * @param {boolean} [opts.delay] - Whether to delay execution of root suite until ready.
    * @param {boolean} [opts.dryRun] - Whether to report tests without running them.
-   * @param {boolean} [options.failZero] - Wether to fail test run if zero tests encountered.
+   * @param {boolean} [options.failZero] - Whether to fail test run if zero tests encountered.
    */
   constructor(suite, opts) {
     super();