diff --git a/eaf.el b/eaf.el
index 12597f9..04a965d 100644
--- a/eaf.el
+++ b/eaf.el
@@ -88,6 +88,7 @@
 (require 'eaf-mindmap)
 (require 'eaf-interleave)
 (require 'json)
+(require 's)
 
 ;;; Code: