diff --git a/src/spesh/frame_walker.c b/src/spesh/frame_walker.c
index 6ee47cdb56..7a9aa859f8 100644
--- a/src/spesh/frame_walker.c
+++ b/src/spesh/frame_walker.c
@@ -329,9 +329,9 @@ MVMObject * MVM_spesh_frame_walker_get_lexicals_hash(MVMThreadContext *tc, MVMSp
     MVMObject *ctx_hash =  MVM_repr_alloc_init(tc, hll->slurpy_hash_type);
     find_lex_info(tc, fw, &frame, &sf, &base_index);
     MVMROOT3(tc, ctx_hash, frame, sf, {
-        MVMLexicalRegistry **lexreg = sf->body.lexical_names_list;
         MVMuint32 i;
         for (i = 0; i < sf->body.num_lexicals; i++) {
+            MVMLexicalRegistry **lexreg = sf->body.lexical_names_list;
             MVMuint32 idx = base_index + lexreg[i]->value;
             MVMuint16 type = sf->body.lexical_types[idx];
             switch (type) {