diff --git a/packages/components/space/src/use-space.ts b/packages/components/space/src/use-space.ts
index 21ce17968068dd..7e0957dec99007 100644
--- a/packages/components/space/src/use-space.ts
+++ b/packages/components/space/src/use-space.ts
@@ -6,9 +6,8 @@ import type { SpaceProps } from './space'
 import type { CSSProperties, StyleValue } from 'vue'
 import type { ComponentSize } from '@element-plus/constants'
 
-const SIZE_MAP: Record<ComponentSize, number> = {
+const SIZE_MAP: Record<Exclude<ComponentSize, ''>, number> = {
   small: 8,
-  '': 8,
   default: 12,
   large: 16,
 }