diff --git a/extra/sequences/extras/extras-tests.factor b/extra/sequences/extras/extras-tests.factor
index a00576b0fb..74de4273e1 100644
--- a/extra/sequences/extras/extras-tests.factor
+++ b/extra/sequences/extras/extras-tests.factor
@@ -282,4 +282,4 @@ tools.test vectors vocabs ;
 { 2 } [ { 1 2 3 4 } [ 2 > ] count-tail ] unit-test
 { 4 } [ { 1 2 3 4 } [ 5 < ] count-tail ] unit-test
 
-{ SBUF" aco" SBUF" ftr"  } [ SBUF" factor" dup [ even? ] extract! ] unit-test
+{ sbuf"aco" sbuf"ftr"  } [ sbuf"factor" dup [ even? ] extract! ] unit-test