diff --git a/dlls/jscript/dispex.c b/dlls/jscript/dispex.c
index 1cacd49a1fa..03062eebb63 100644
--- a/dlls/jscript/dispex.c
+++ b/dlls/jscript/dispex.c
@@ -495,6 +495,12 @@ static HRESULT prop_put(jsdisp_t *This, dispex_prop_t *prop, jsval_t val)
 
     switch(prop->type) {
     case PROP_BUILTIN:
+        if(prop->u.p->invoke) {
+            prop->type = PROP_JSVAL;
+            prop->flags = PROPF_CONFIGURABLE | PROPF_WRITABLE;
+            prop->u.val = jsval_undefined();
+            break;
+        }
         if(!prop->u.p->setter) {
             TRACE("getter with no setter\n");
             return S_OK;
diff --git a/dlls/jscript/tests/run.c b/dlls/jscript/tests/run.c
index 86d6fa46212..5e797a19cb9 100644
--- a/dlls/jscript/tests/run.c
+++ b/dlls/jscript/tests/run.c
@@ -2955,7 +2955,6 @@ static void test_script_exprs(void)
     hres = parse_script_expr(L"var o=new Object(); Object.prototype.toString = function() {return \"wine\";}; Object.prototype.toLocaleString.call(o)", &v, NULL);
     ok(hres == S_OK, "parse_script_expr failed: %08lx\n", hres);
     ok(V_VT(&v) == VT_BSTR, "V_VT(v) = %d\n", V_VT(&v));
-    todo_wine
     ok(!lstrcmpW(V_BSTR(&v), L"wine"), "V_BSTR(v) = %s\n", wine_dbgstr_w(V_BSTR(&v)));
     VariantClear(&v);