diff --git a/autoload/vimspector/internal/balloon.vim b/autoload/vimspector/internal/balloon.vim
index e2f041d..fd37e79 100644
--- a/autoload/vimspector/internal/balloon.vim
+++ b/autoload/vimspector/internal/balloon.vim
@@ -184,6 +184,7 @@ function! vimspector#internal#balloon#CreateTooltip(is_hover, ...)
     if a:is_hover
       let config['filter'] = "MouseFilter"
       let config['mousemoved'] = [0, 0, 0]
+      let config['close'] = "button"
       let s:float_win = popup_beval(body, config)
     else
       let config['filter'] = "CursorFiler"