diff --git a/py/compile.c b/py/compile.c
index f554854252..7d94412652 100644
--- a/py/compile.c
+++ b/py/compile.c
@@ -981,7 +981,7 @@ STATIC void close_over_variables_etc(compiler_t *comp, scope_t *this_scope, int
                         EMIT_ARG(load_closure, id->qst, id->local_num);
 #else
                         // in Micro Python we load closures using LOAD_FAST
-                        EMIT_ARG(load_fast, id->qst, id->flags, id->local_num);
+                        EMIT_ARG(load_fast, id->qst, id->local_num);
 #endif
                         nfree += 1;
                     }
@@ -2487,7 +2487,7 @@ STATIC void compile_trailer_paren_helper(compiler_t *comp, mp_parse_node_t pn_ar
         for (int i = 0; i < comp->scope_cur->id_info_len; i++) {
             if (comp->scope_cur->id_info[i].flags & ID_FLAG_IS_PARAM) {
                 // first argument found; load it and call super
-                EMIT_ARG(load_fast, MP_QSTR_, comp->scope_cur->id_info[i].flags, comp->scope_cur->id_info[i].local_num);
+                EMIT_ARG(load_fast, MP_QSTR_, comp->scope_cur->id_info[i].local_num);
                 EMIT_ARG(call_function, 2, 0, 0);
                 return;
             }
@@ -3384,7 +3384,7 @@ STATIC void compile_scope(compiler_t *comp, scope_t *scope, pass_kind_t pass) {
 #if MICROPY_EMIT_CPYTHON
             EMIT_ARG(load_closure, MP_QSTR___class__, 0); // XXX check this is the correct local num
 #else
-            EMIT_ARG(load_fast, MP_QSTR___class__, id->flags, id->local_num);
+            EMIT_ARG(load_fast, MP_QSTR___class__, id->local_num);
 #endif
         }
         EMIT(return_value);
diff --git a/py/emit.h b/py/emit.h
index 06a4201e7f..2ca3d0420d 100644
--- a/py/emit.h
+++ b/py/emit.h
@@ -82,7 +82,7 @@ typedef struct _emit_method_table_t {
     void (*load_const_str)(emit_t *emit, qstr qst, bool bytes);
     void (*load_const_obj)(emit_t *emit, void *obj);
     void (*load_null)(emit_t *emit);
-    void (*load_fast)(emit_t *emit, qstr qst, mp_uint_t id_flags, mp_uint_t local_num);
+    void (*load_fast)(emit_t *emit, qstr qst, mp_uint_t local_num);
     void (*load_deref)(emit_t *emit, qstr qst, mp_uint_t local_num);
     void (*load_name)(emit_t *emit, qstr qst);
     void (*load_global)(emit_t *emit, qstr qst);
diff --git a/py/emitbc.c b/py/emitbc.c
index 436fdf1430..6be8f46229 100644
--- a/py/emitbc.c
+++ b/py/emitbc.c
@@ -498,7 +498,7 @@ STATIC void emit_bc_load_null(emit_t *emit) {
     emit_write_bytecode_byte(emit, MP_BC_LOAD_NULL);
 };
 
-STATIC void emit_bc_load_fast(emit_t *emit, qstr qst, mp_uint_t id_flags, mp_uint_t local_num) {
+STATIC void emit_bc_load_fast(emit_t *emit, qstr qst, mp_uint_t local_num) {
     assert(local_num >= 0);
     emit_bc_pre(emit, 1);
     if (local_num <= 15) {
diff --git a/py/emitcommon.c b/py/emitcommon.c
index 4d909839ad..8011c0fb0b 100644
--- a/py/emitcommon.c
+++ b/py/emitcommon.c
@@ -44,7 +44,7 @@ void emit_common_load_id(emit_t *emit, const emit_method_table_t *emit_method_ta
     } else if (id->kind == ID_INFO_KIND_GLOBAL_EXPLICIT) {
         EMIT(load_global, qst);
     } else if (id->kind == ID_INFO_KIND_LOCAL) {
-        EMIT(load_fast, qst, id->flags, id->local_num);
+        EMIT(load_fast, qst, id->local_num);
     } else if (id->kind == ID_INFO_KIND_CELL || id->kind == ID_INFO_KIND_FREE) {
         EMIT(load_deref, qst, id->local_num);
     } else {
diff --git a/py/emitcpy.c b/py/emitcpy.c
index c54345c907..924a5566d9 100644
--- a/py/emitcpy.c
+++ b/py/emitcpy.c
@@ -245,7 +245,7 @@ STATIC void emit_cpy_load_null(emit_t *emit) {
     assert(0);
 }
 
-STATIC void emit_cpy_load_fast(emit_t *emit, qstr qst, mp_uint_t id_flags, mp_uint_t local_num) {
+STATIC void emit_cpy_load_fast(emit_t *emit, qstr qst, mp_uint_t local_num) {
     emit_pre(emit, 1, 3);
     if (emit->pass == MP_PASS_EMIT) {
         printf("LOAD_FAST " UINT_FMT " %s\n", local_num, qstr_str(qst));
diff --git a/py/emitnative.c b/py/emitnative.c
index c7cbbf4516..a8e547f0d3 100644
--- a/py/emitnative.c
+++ b/py/emitnative.c
@@ -1184,8 +1184,8 @@ STATIC void emit_native_load_null(emit_t *emit) {
     emit_post_push_imm(emit, VTYPE_PYOBJ, 0);
 }
 
-STATIC void emit_native_load_fast(emit_t *emit, qstr qst, mp_uint_t id_flags, mp_uint_t local_num) {
-    DEBUG_printf("load_fast(%s, " UINT_FMT ", " UINT_FMT ")\n", qstr_str(qst), id_flags, local_num);
+STATIC void emit_native_load_fast(emit_t *emit, qstr qst, mp_uint_t local_num) {
+    DEBUG_printf("load_fast(%s, " UINT_FMT ")\n", qstr_str(qst), local_num);
     vtype_kind_t vtype = emit->local_vtype[local_num];
     if (vtype == VTYPE_UNBOUND) {
         printf("ViperTypeError: local %s used before type known\n", qstr_str(qst));