     [ (marshall-char*-or-string) &free ] ptr-pass-through ;
 
 : (marshall-char**-or-strings) ( seq -- alien )
-    first string?
+    dup first string?
     [ utf8 strings>alien malloc-byte-array ]
     [ (marshall-char**) ] if ;
 
-: marshall-char**-or-string ( n/string -- alien )
-    [ (marshall-char**-or-string) ] ptr-pass-through ;
-
-: marshall-char**-or-string-free ( n/string -- alien )
-    [ (marshall-char**-or-string) &free ] ptr-pass-through ;
+: marshall-char**-or-strings ( n/string -- alien )
+    [ (marshall-char**-or-strings) ] ptr-pass-through ;
+
+: marshall-char**-or-strings-free ( n/string -- alien )
+    [ (marshall-char**-or-strings) &free ] ptr-pass-through ;
 
 : primitive-marshaller ( type -- quot/f )
     {

        [ drop f ]
    } case ;

: marshall-non-ptr ( obj -- byte-array/f )
    {
        { [ dup byte-array? ] [ ] }
        { [ dup alien-wrapper? ]

    [ marshall-void* ] map >void*-array malloc-underlying ;

: (marshall-char*-or-string) ( n/string -- alien )
    dup string?
    [ utf8 string>alien malloc-byte-array ]
    [ (marshall-char*) ] if ;

