diff --git a/src/hackerbase.scm b/src/hackerbase.scm
index 4ca9264..19da9ca 100644
--- a/src/hackerbase.scm
+++ b/src/hackerbase.scm
@@ -49,7 +49,8 @@
 	table
 	export-web-static
 	dokuwiki
-	racket-kwargs)
+	racket-kwargs
+	util-string)
 
 ;; Command-line options and configurable parameters
 (define -needs-bank- (make-parameter #f))