diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff6bfa1e37..6cefbcb709 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -51,6 +51,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Added missing `scroll_end` parameter to the `Log.write_line` method https://github.com/Textualize/textual/pull/5672
 - Restored support for blink https://github.com/Textualize/textual/pull/5675
 - Fixed scrolling breaking on DataTable with `overflow: hidden` https://github.com/Textualize/textual/pull/5681
+- Fixed ToggleButton glyph edges drawing lines through RadioButton https://github.com/Textualize/textual/pull/5722
 
 ### Added
 
diff --git a/src/textual/widgets/_radio_button.py b/src/textual/widgets/_radio_button.py
index f1ec037a15..4896c5676d 100644
--- a/src/textual/widgets/_radio_button.py
+++ b/src/textual/widgets/_radio_button.py
@@ -15,6 +15,12 @@ class RadioButton(ToggleButton):
     BUTTON_INNER = "\u25cf"
     """The character used for the inside of the button."""
 
+    BUTTON_LEFT = ""
+    """Unused left character from toggle button (empty to avoid unwanted rendering artifacts in some terminals)."""
+
+    BUTTON_RIGHT = ""
+    """Unused right character from toggle button (empty to avoid unwanted rendering artifacts in some terminals)."""
+
     class Changed(ToggleButton.Changed):
         """Posted when the value of the radio button changes.