diff --git a/modules/ui_models.py b/modules/ui_models.py
index 3a5a29c3b..a216f3acf 100644
--- a/modules/ui_models.py
+++ b/modules/ui_models.py
@@ -179,7 +179,7 @@ def create_ui():
                             custom_name = gr.Textbox(label="New model name")
                         with gr.Row():
                             merge_mode = gr.Dropdown(choices=merge_methods.__all__, value="weighted_sum", label="Interpolation Method")
-                            merge_mode_docs = gr.HTML(value=(getattr(merge_methods, "weighted_sum", "").__doc__ or 'Error: Documentation missing').replace("\n", "<br>"))
+                            merge_mode_docs = gr.HTML(value=merge_methods.weighted_sum.__doc__.replace("\n", "<br>")) # pylint: disable=no-member # pyright: ignore[reportOptionalMemberAccess]
                         with gr.Row():
                             primary_model_name = gr.Dropdown(sd_model_choices(), label="Primary model", value="None")
                             create_refresh_button(primary_model_name, sd_models.list_models, lambda: {"choices": sd_model_choices()}, "checkpoint_A_refresh")
@@ -319,7 +319,11 @@ def create_ui():
                         return gr.Slider.update(value=None, visible=False)
 
                 def show_help(mode):
-                    doc = getattr(merge_methods, mode).__doc__.replace("\n", "<br>")
+                    try:
+                        doc = getattr(merge_methods, mode).__doc__.replace("\n", "<br>")
+                    except AttributeError:
+                        log.warning(f'Merge mode "{mode}" is missing documentation')
+                        doc = "Error: Documentation missing"
                     return gr.update(value=doc, visible=True)
 
                 def show_unload(device):