diff --git a/backend/src/utils/constants.ts b/backend/src/utils/constants.ts
index 8e6f943ac8..0aa5d0965f 100644
--- a/backend/src/utils/constants.ts
+++ b/backend/src/utils/constants.ts
@@ -75,7 +75,7 @@ export const blankDashboardCR: DashboardConfig = {
 };
 
 export const MOUNT_PATH = '/opt/app-root/src';
-export const DEFAULT_PVC_SIZE = '20';
+export const DEFAULT_PVC_SIZE = '20Gi';
 
 export const DEFAULT_NOTEBOOK_SIZES: NotebookSize[] = [
   {