diff --git a/vm/contexts.cpp b/vm/contexts.cpp
index 2608d6c09a..c1cbe7539a 100644
--- a/vm/contexts.cpp
+++ b/vm/contexts.cpp
@@ -247,20 +247,14 @@ cell factor_vm::array_to_stack(array* array, cell bottom) {
   return bottom + depth - sizeof(cell);
 }
 
-void factor_vm::set_datastack(context* ctx, array* array) {
-  ctx->datastack = array_to_stack(array, ctx->datastack_seg->start);
-}
-
 void factor_vm::primitive_set_datastack() {
-  set_datastack(ctx, untag_check<array>(ctx->pop()));
-}
-
-void factor_vm::set_retainstack(context* ctx, array* array) {
-  ctx->retainstack = array_to_stack(array, ctx->retainstack_seg->start);
+  array* arr = untag_check<array>(ctx->pop());
+  ctx->datastack = array_to_stack(arr, ctx->datastack_seg->start);
 }
 
 void factor_vm::primitive_set_retainstack() {
-  set_retainstack(ctx, untag_check<array>(ctx->pop()));
+  array* arr = untag_check<array>(ctx->pop());
+  ctx->retainstack = array_to_stack(arr, ctx->retainstack_seg->start);
 }
 
 /* Used to implement call( */
diff --git a/vm/vm.hpp b/vm/vm.hpp
index 1245bd7683..3bd3c769eb 100644
--- a/vm/vm.hpp
+++ b/vm/vm.hpp
@@ -166,9 +166,7 @@ struct factor_vm {
   cell retainstack_to_array(context* ctx);
   void primitive_retainstack_for();
   cell array_to_stack(array* array, cell bottom);
-  void set_datastack(context* ctx, array* array);
   void primitive_set_datastack();
-  void set_retainstack(context* ctx, array* array);
   void primitive_set_retainstack();
   void primitive_check_datastack();
   void primitive_load_locals();