diff --git a/extra/builder/util/util.factor b/extra/builder/util/util.factor
index 5eac98d3bc..f9ab6c1d1d 100644
--- a/extra/builder/util/util.factor
+++ b/extra/builder/util/util.factor
@@ -12,8 +12,6 @@ IN: builder.util
 
 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
-: runtime ( quot -- time ) benchmark ;
-
 : minutes>ms ( min -- ms ) 60 * 1000 * ;
 
 : file>string ( file -- string ) utf8 file-contents ;