diff --git a/core/hashtables/hashtables.factor b/core/hashtables/hashtables.factor
index 7d8c6f0b5f..1fabc1aab7 100755
--- a/core/hashtables/hashtables.factor
+++ b/core/hashtables/hashtables.factor
@@ -95,11 +95,12 @@ IN: hashtables
     [ swap pick (set-hash) drop f ] find-pair 2drop 2drop ;
 
 : hash-large? ( hash -- ? )
-    dup hash-count 3 fixnum*fast
-    swap hash-array array-capacity > ;
+    [ hash-count 3 fixnum*fast  ]
+    [ hash-array array-capacity ] bi > ;
 
 : hash-stale? ( hash -- ? )
-    dup hash-deleted 10 fixnum*fast swap hash-count fixnum> ;
+    [ hash-deleted 10 fixnum*fast ]
+    [ hash-count                  ] bi fixnum> ;
 
 : grow-hash ( hash -- )
     [ dup hash-array swap assoc-size 1+ ] keep
@@ -183,10 +184,13 @@ M: hashtable assoc-like
     [ 3drop ] [ dupd dupd set-at swap push ] if ; inline
 
 : prune ( seq -- newseq )
-    dup length <hashtable> over length <vector>
-    rot [ >r 2dup r> (prune) ] each nip ;
+    [ length <hashtable> ]
+    [ length <vector>    ]
+    [                    ] tri
+    [ >r 2dup r> (prune) ] each nip ;
 
 : all-unique? ( seq -- ? )
-    dup prune [ length ] 2apply = ;
+    [ length       ]
+    [ prune length ] bi = ;
 
 INSTANCE: hashtable assoc
diff --git a/extra/random/random-docs.factor b/extra/random/random-docs.factor
index 905f81b53d..a8a214dcc7 100644
--- a/extra/random/random-docs.factor
+++ b/extra/random/random-docs.factor
@@ -17,7 +17,7 @@ HELP: random-32*
 { $description "Generates a random 32-bit unsigned integer." } ;
 
 HELP: random-bytes*
-{ $values { "n" "an integer" } { "tuple" "a random number generator" } { "bytes" "a sequence of random bytes" } }
+{ $values { "n" "an integer" } { "tuple" "a random number generator" } { "byte-array" "a sequence of random bytes" } }
 { $description "Generates a byte-array of random bytes." } ;
 
 HELP: random
@@ -26,7 +26,7 @@ HELP: random
 { $notes "Since integers are sequences, passing an integer " { $snippet "n" } " yields a random integer in the interval " { $snippet "[0,n)" } "." } ;
 
 HELP: random-bytes
-{ $values { "n" "an integer" } { "bytes" "a random integer" } }
+{ $values { "n" "an integer" } { "byte-array" "a random integer" } }
 { $description "Outputs an integer with n bytes worth of bits." } ;
 
 HELP: random-bits