diff --git a/eldoc-box.el b/eldoc-box.el
index f28cce4..267123a 100644
--- a/eldoc-box.el
+++ b/eldoc-box.el
@@ -111,7 +111,7 @@
 
 ;;;; Backstage
 ;;;;; Variable
-(defvar eldoc-box--buffer "*eldoc-box*"
+(defvar eldoc-box--buffer " *eldoc-box*"
   "The buffer used to display eglot doc.")
 
 ;;;;; Function