diff --git a/src/components/EditorCanvas/Table.jsx b/src/components/EditorCanvas/Table.jsx
index 517a455..1e656f9 100644
--- a/src/components/EditorCanvas/Table.jsx
+++ b/src/components/EditorCanvas/Table.jsx
@@ -357,6 +357,7 @@ export default function Table(props) {
           ) : (
             <div className="flex gap-1 items-center">
               {fieldData.primary && <IconKeyStroked />}
+              {!fieldData.notNull && <span>?</span>}
               <span>
                 {fieldData.type +
                   ((dbToTypes[database][fieldData.type].isSized ||