diff --git a/manimlib/mobject/svg/tex_mobject.py b/manimlib/mobject/svg/tex_mobject.py
index 80378ebf..10893b62 100644
--- a/manimlib/mobject/svg/tex_mobject.py
+++ b/manimlib/mobject/svg/tex_mobject.py
@@ -27,7 +27,7 @@ class SingleStringTexMobject(SVGMobject):
         "template_tex_file_body": TEMPLATE_TEX_FILE_BODY,
         "stroke_width": 0,
         "fill_opacity": 1.0,
-        "background_stroke_width": 5,
+        "background_stroke_width": 1,
         "background_stroke_color": BLACK,
         "should_center": True,
         "height": None,