diff --git a/src/init.c b/src/init.c
index 6e6b106..b0042fb 100644
--- a/src/init.c
+++ b/src/init.c
@@ -454,7 +454,7 @@ int main( int argc, char *argv[] ) {
                    &lisp_print );
     bind_function( L"println",
                    L"`(println stream)`: Print a new line character to `stream`, if specified, else to `*out*`.",
-                   &lisp_print );
+                   &lisp_println );
     bind_function( L"put!", L"", lisp_hashmap_put );
     bind_function( L"put-all!",
                    L"`(put-all! dest source)`: If `dest` is a namespace and is writable, copies all key-value pairs from `source` into `dest`.",
diff --git a/src/io/print.c b/src/io/print.c
index f5f80a5..d9d2998 100644
--- a/src/io/print.c
+++ b/src/io/print.c
@@ -350,8 +350,6 @@ lisp_println( struct stack_frame *frame, struct cons_pointer frame_pointer,
         output = pointer2cell( out_stream ).payload.stream.stream;
 
         println( output );
-
-        free( output );
     }
 
     return NIL;
diff --git a/src/memory/stack.c b/src/memory/stack.c
index 8908fc7..6cc68a0 100644
--- a/src/memory/stack.c
+++ b/src/memory/stack.c
@@ -97,8 +97,8 @@ struct cons_pointer in_make_empty_frame( struct cons_pointer previous,
         frame->depth = depth;
 
         /*
-         * clearing the frame with memset would probably be slightly quicker, but
-         * this is clear.
+         * The frame has already been cleared with memset in make_vso, but our
+         * NIL is not the same as C's NULL.
          */
         frame->more = NIL;
         frame->function = NIL;
diff --git a/unit-tests/memberp.sh b/unit-tests/memberp.sh
index ef442f7..a20a8b7 100644
--- a/unit-tests/memberp.sh
+++ b/unit-tests/memberp.sh
@@ -60,6 +60,7 @@ output=`target/psse $1 <<EOF
   (set! member? 
     (lambda
       (item collection)
+      (progn (print (list "In member; collection is:" collection)) (println))
       (cond
         ((nil? collection) nil)
         ((= item (car collection)) t)