diff --git a/modules/ui.py b/modules/ui.py
index 2016ed74..70a597d7 100644
--- a/modules/ui.py
+++ b/modules/ui.py
@@ -525,14 +525,15 @@ def create_ui():
                             custom_inputs = modules.scripts.scripts_txt2img.setup_ui()
 
             hr_resolution_preview_inputs = [enable_hr, width, height, hr_scale, hr_resize_x, hr_resize_y]
-            for input in hr_resolution_preview_inputs:
-                input.change(
+
+            def update_resolution_hires_input(inp, evt):
+                getattr(inp, evt)(
                     fn=calc_resolution_hires,
                     inputs=hr_resolution_preview_inputs,
                     outputs=[hr_final_resolution],
                     show_progress=False,
                 )
-                input.change(
+                getattr(inp, evt)(
                     None,
                     _js="onCalcResolutionHires",
                     inputs=hr_resolution_preview_inputs,
@@ -540,6 +541,10 @@ def create_ui():
                     show_progress=False,
                 )
 
+            update_resolution_hires_input(enable_hr, 'change')
+            for input in hr_resolution_preview_inputs[1:]:
+                update_resolution_hires_input(input, 'release')
+
             txt2img_gallery, generation_info, html_info, html_log = create_output_panel("txt2img", opts.outdir_txt2img_samples)
 
             connect_reuse_seed(seed, reuse_seed, generation_info, dummy_component, is_subseed=False)