diff --git a/extra/builder/builder.factor b/extra/builder/builder.factor
index 8e9565f82a..0e3a794e24 100644
--- a/extra/builder/builder.factor
+++ b/extra/builder/builder.factor
@@ -106,7 +106,7 @@ IN: builder
     +closed+         >>stdin
     "../test-log"    >>stdout
     +stdout+         >>stderr
-    120 minutes      >>timeout ;
+    240 minutes      >>timeout ;
 
 : do-builder-test ( -- )
   builder-test [ "Test error" print "../test-log" 100 cat-n ] run-or-bail ;