diff --git a/components/field/src/field-group/field-group.js b/components/field/src/field-group/field-group.js
index 0108c1b825..7e1c11fddd 100644
--- a/components/field/src/field-group/field-group.js
+++ b/components/field/src/field-group/field-group.js
@@ -16,7 +16,7 @@ const FieldGroup = ({
     error,
     warning,
 }) => (
-    <FieldSet classname={className} dataTest={dataTest}>
+    <FieldSet className={className} dataTest={dataTest}>
         <Field
             label={label}
             disabled={disabled}