diff --git a/manimlib/mobject/svg/mtex_mobject.py b/manimlib/mobject/svg/mtex_mobject.py
index 308f8629..d6687363 100644
--- a/manimlib/mobject/svg/mtex_mobject.py
+++ b/manimlib/mobject/svg/mtex_mobject.py
@@ -60,6 +60,7 @@ class MTex(StringMobject):
             self.path_string_config,
             self.base_color,
             self.isolate,
+            self.protect,
             self.tex_string,
             self.alignment,
             self.tex_environment,
diff --git a/manimlib/mobject/svg/text_mobject.py b/manimlib/mobject/svg/text_mobject.py
index cbf504b7..5e3b7c95 100644
--- a/manimlib/mobject/svg/text_mobject.py
+++ b/manimlib/mobject/svg/text_mobject.py
@@ -136,6 +136,7 @@ class MarkupText(StringMobject):
             self.path_string_config,
             self.base_color,
             self.isolate,
+            self.protect,
             self.text,
             self.font_size,
             self.lsh,