diff --git a/packages/ra-ui-materialui/src/input/TranslatableInputsTabContent.tsx b/packages/ra-ui-materialui/src/input/TranslatableInputsTabContent.tsx
index f1a4f44fd49..a5ca53fb311 100644
--- a/packages/ra-ui-materialui/src/input/TranslatableInputsTabContent.tsx
+++ b/packages/ra-ui-materialui/src/input/TranslatableInputsTabContent.tsx
@@ -28,10 +28,9 @@ export const TranslatableInputsTabContent = (
         () => ({
             getSource: (source: string) => `${source}.${locale}`,
             getLabel: (source: string) => {
-                const itemSource = source.replace(`.${locale}`, '');
                 return parentSourceContext
-                    ? parentSourceContext.getLabel(itemSource)
-                    : getResourceFieldLabelKey(resource, itemSource);
+                    ? parentSourceContext.getLabel(source)
+                    : getResourceFieldLabelKey(resource, source);
             },
         }),
         [locale, parentSourceContext, resource]