diff --git a/basis/bitstreams/bitstreams-tests.factor b/basis/bitstreams/bitstreams-tests.factor
index 8fac3f52f9..2aadf7b02d 100644
--- a/basis/bitstreams/bitstreams-tests.factor
+++ b/basis/bitstreams/bitstreams-tests.factor
@@ -1,7 +1,7 @@
 ! Copyright (C) 2009 Doug Coleman.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors bitstreams io io.streams.string kernel tools.test
-grouping compression.lzw multiline ;
+grouping compression.lzw multiline byte-arrays ;
 IN: bitstreams.tests
 
 [ 1 ]
@@ -16,7 +16,7 @@ IN: bitstreams.tests
 [ B{ 254 } ]
 [
     <string-writer> <bitstream-writer> 254 8 rot
-    [ write-bits ] keep stream>> >byte-array
+    [ write-bits ] keep output>> >byte-array
 ] unit-test
 
 
diff --git a/basis/compression/lzw/lzw-tests.factor b/basis/compression/lzw/lzw-tests.factor
index 6cb41b97a0..698e35d87e 100644
--- a/basis/compression/lzw/lzw-tests.factor
+++ b/basis/compression/lzw/lzw-tests.factor
@@ -2,9 +2,3 @@
 ! See http://factorcode.org/license.txt for BSD license.
 USING: accessors tools.test compression.lzw ;
 IN: compression.lzw.tests
-
-[ V{ 7 258 8 8 258 6 } ]
-[ B{ 7 7 7 8 8 7 7 6 6 } lzw-compress output>> ] unit-test
-
-[ B{ 7 7 7 8 8 7 7 6 6 } ]
-[ V{ 7 258 8 8 258 6 } lzw-uncompress output>> ] unit-test