diff --git a/packages/react-core/src/components/Toolbar/ToolbarGroup.tsx b/packages/react-core/src/components/Toolbar/ToolbarGroup.tsx
index 27968ecc0d1..033fd9ce414 100644
--- a/packages/react-core/src/components/Toolbar/ToolbarGroup.tsx
+++ b/packages/react-core/src/components/Toolbar/ToolbarGroup.tsx
@@ -36,7 +36,7 @@ export interface ToolbarGroupProps extends Omit<React.HTMLProps<HTMLDivElement>,
   alignSelf?: 'start' | 'center' | 'baseline' | 'default';
   /** Sets both the column and row gap at various breakpoints. */
   gap?: {
-    default?: 'gapNone' | 'gapXs' | 'gapSm' | 'gapMd' | 'gapLg' | 'gapXl' | 'gap2xl' | 'gap_3xl' | 'gap_4xl';
+    default?: 'gapNone' | 'gapXs' | 'gapSm' | 'gapMd' | 'gapLg' | 'gapXl' | 'gap_2xl' | 'gap_3xl' | 'gap_4xl';
     md?: 'gapNone' | 'gapXs' | 'gapSm' | 'gapMd' | 'gapLg' | 'gapXl' | 'gap_2xl' | 'gap_3xl' | 'gap_4xl';
     lg?: 'gapNone' | 'gapXs' | 'gapSm' | 'gapMd' | 'gapLg' | 'gapXl' | 'gap_2xl' | 'gap_3xl' | 'gap_4xl';
     xl?: 'gapNone' | 'gapXs' | 'gapSm' | 'gapMd' | 'gapLg' | 'gapXl' | 'gap_2xl' | 'gap_3xl' | 'gap_4xl';