diff --git a/lib/main.js b/lib/main.js
index 6edff8c4..5bcc86b1 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -60,7 +60,7 @@ function run(actionInput) {
                     `-reporter=${core.getInput('reporter')}`,
                     `-fail-on-error=${should_fail}`,
                     `-filter-mode=${core.getInput('filter_mode')}`,
-                    `-level=${vale_code == 1 && should_fail ? 'error' : 'info'}`
+                    `-level=${vale_code == 1 && should_fail === 'true' ? 'error' : 'info'}`
                 ], {
                     cwd,
                     input: Buffer.from(output.stdout, 'utf-8'),
diff --git a/src/main.ts b/src/main.ts
index 5ecea802..0646fea4 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -46,7 +46,9 @@ export async function run(actionInput: input.Input): Promise<void> {
             `-reporter=${core.getInput('reporter')}`,
             `-fail-on-error=${should_fail}`,
             `-filter-mode=${core.getInput('filter_mode')}`,
-            `-level=${vale_code == 1 && should_fail ? 'error' : 'info'}`
+            `-level=${
+              vale_code == 1 && should_fail === 'true' ? 'error' : 'info'
+            }`
           ],
           {
             cwd,