diff --git a/util/general_utils.py b/util/general_utils.py
index 425371a7e..65c105e14 100644
--- a/util/general_utils.py
+++ b/util/general_utils.py
@@ -214,7 +214,7 @@ def render_markdown(markdown_text, image_width=800, image_height=600, font_size=
             if font.getsize(line)[0] > image_width:
                 cp = line
                 for ii in range(len(line)):
-                    if ii % max_width == 0:
+                    if ii % image_width == 0:
                         cp = cp[:ii] + '\n' + cp[ii:]
                 pre_lines[i] = cp
                 cnt+=1