root.diff

diff --git a/src/core/interp.c b/src/core/interp.c
index 5760ad1..992ffdc 100644
--- a/src/core/interp.c
+++ b/src/core/interp.c
@@ -2335,13 +2335,11 @@ void MVM_interp_run(MVMThreadContext *tc, void (*initial_invoke)(MVMThreadContex
                 box = MVM_intcache_get(tc, type, GET_REG(cur_op, 2).i64);
                 if (box == 0) {
                     box = REPR(type)->allocate(tc, STABLE(type));
-                    MVMROOT(tc, box, {
-                        if (REPR(box)->initialize)
-                            REPR(box)->initialize(tc, STABLE(box), box, OBJECT_BODY(box));
-                        REPR(box)->box_funcs.set_int(tc, STABLE(box), box,
-                            OBJECT_BODY(box), GET_REG(cur_op, 2).i64);
-                        GET_REG(cur_op, 0).o = box;
-                    });
+                    if (REPR(box)->initialize)
+                        REPR(box)->initialize(tc, STABLE(box), box, OBJECT_BODY(box));
+                    REPR(box)->box_funcs.set_int(tc, STABLE(box), box,
+                        OBJECT_BODY(box), GET_REG(cur_op, 2).i64);
+                    GET_REG(cur_op, 0).o = box;
                 } else {
                     GET_REG(cur_op, 0).o = box;
                 }
@@ -2351,24 +2349,23 @@ void MVM_interp_run(MVMThreadContext *tc, void (*initial_invoke)(MVMThreadContex
             OP(box_n): {
                 MVMObject *type = GET_REG(cur_op, 4).o;
                 MVMObject *box  = REPR(type)->allocate(tc, STABLE(type));
-                MVMROOT(tc, box, {
-                    if (REPR(box)->initialize)
-                        REPR(box)->initialize(tc, STABLE(box), box, OBJECT_BODY(box));
-                    REPR(box)->box_funcs.set_num(tc, STABLE(box), box,
-                        OBJECT_BODY(box), GET_REG(cur_op, 2).n64);
-                    GET_REG(cur_op, 0).o = box;
-                });
+                if (REPR(box)->initialize)
+                    REPR(box)->initialize(tc, STABLE(box), box, OBJECT_BODY(box));
+                REPR(box)->box_funcs.set_num(tc, STABLE(box), box,
+                    OBJECT_BODY(box), GET_REG(cur_op, 2).n64);
+                GET_REG(cur_op, 0).o = box;
                 cur_op += 6;
                 goto NEXT;
             }
             OP(box_s): {
+                MVMString *str  = GET_REG(cur_op, 2).s;
                 MVMObject *type = GET_REG(cur_op, 4).o;
-                MVMObject *box  = REPR(type)->allocate(tc, STABLE(type));
-                MVMROOT(tc, box, {
+                MVMROOT(tc, str, {
+                    MVMObject *box  = REPR(type)->allocate(tc, STABLE(type));
                     if (REPR(box)->initialize)
                         REPR(box)->initialize(tc, STABLE(box), box, OBJECT_BODY(box));
                     REPR(box)->box_funcs.set_str(tc, STABLE(box), box,
-                        OBJECT_BODY(box), GET_REG(cur_op, 2).s);
+                        OBJECT_BODY(box), str);
                     GET_REG(cur_op, 0).o = box;
                 });
                 cur_op += 6;