diff --git a/lib/classes/ConfigSchemaHandler/index.js b/lib/classes/ConfigSchemaHandler/index.js
index 09152d79b02..9a53368100d 100644
--- a/lib/classes/ConfigSchemaHandler/index.js
+++ b/lib/classes/ConfigSchemaHandler/index.js
@@ -91,7 +91,7 @@ class ConfigSchemaHandler {
       this.relaxProviderSchema();
     }
 
-    const ajv = new Ajv({ allErrors: true, verbose: true });
+    const ajv = new Ajv({ allErrors: true, coerceTypes: true, verbose: true });
     require('ajv-keywords')(ajv, 'regexp');
     // Workaround https://github.com/ajv-validator/ajv/issues/1255
     normalizeSchemaObject(this.schema, this.schema);