diff --git a/superset-frontend/.eslintrc.js b/superset-frontend/.eslintrc.js
index 27c1bcca01..30abc8c597 100644
--- a/superset-frontend/.eslintrc.js
+++ b/superset-frontend/.eslintrc.js
@@ -59,7 +59,6 @@ module.exports = {
         '@typescript-eslint/ban-types': 0, // disabled temporarily
         '@typescript-eslint/no-empty-function': 0,
         '@typescript-eslint/no-explicit-any': 0,
-        '@typescript-eslint/no-non-null-assertion': 0, // disabled temporarily
         '@typescript-eslint/no-use-before-define': 1, // disabled temporarily
         '@typescript-eslint/no-unused-vars': 0, // disabled temporarily
         '@typescript-eslint/explicit-function-return-type': 0,
diff --git a/superset-frontend/src/components/FilterableTable/FilterableTable.tsx b/superset-frontend/src/components/FilterableTable/FilterableTable.tsx
index 34b44e7f5b..d320b0c972 100644
--- a/superset-frontend/src/components/FilterableTable/FilterableTable.tsx
+++ b/superset-frontend/src/components/FilterableTable/FilterableTable.tsx
@@ -289,7 +289,7 @@ export default class FilterableTable extends PureComponent<
   }
 
   fitTableToWidthIfNeeded() {
-    const containerWidth = this.container.current!.clientWidth;
+    const containerWidth = this.container.current?.clientWidth ?? 0;
     if (this.totalTableWidth < containerWidth) {
       // fit table width if content doesn't fill the width of the container
       this.totalTableWidth = containerWidth;