diff --git a/bread_editor/editor.py b/bread_editor/editor.py
index f5e5c87..64d99f9 100644
--- a/bread_editor/editor.py
+++ b/bread_editor/editor.py
@@ -55,6 +55,11 @@ class BitEditor:
         self.font.setLetterSpacing(QFont.SpacingType.PercentageSpacing, spacing)
         self.input.setFont(self.font)
 
+        self.cursor_width = self.input.fontMetrics().averageCharWidth()
+
+        # set the cursor with to match the letter spacing
+        self.input.setCursorWidth(self.cursor_width + 1)  # + 1 because else it somehow draws a 1px wide vertical line
+
         highlight_ones = self.app.settings.highlight_ones
 
         highlighter_document = self.input.document() if highlight_ones else None