diff --git a/testfiles-lua/test_sqrt.pvt b/testfiles-lua/test_sqrt.pvt
index c299491..776383e 100644
--- a/testfiles-lua/test_sqrt.pvt
+++ b/testfiles-lua/test_sqrt.pvt
@@ -9,7 +9,7 @@
 \input{regression-test}
 \documentclass{article}
 \usepackage{unicode-math}
-\tagpdfsetup{math/mathml/structelem}
+\tagpdfsetup{math/mathml/structelem,attach-css=false}
 \begin{document}
 
 $ \sqrt{x} $
diff --git a/testfiles-lua/test_struct.pvt b/testfiles-lua/test_struct.pvt
index 793a989..d78a16c 100644
--- a/testfiles-lua/test_struct.pvt
+++ b/testfiles-lua/test_struct.pvt
@@ -9,7 +9,7 @@
 \input{regression-test}
 \documentclass{article}
 \usepackage{unicode-math}
-\tagpdfsetup{math/mathml/structelem}
+\tagpdfsetup{math/mathml/structelem,attach-css=false}
 \begin{document}
 
 hello
diff --git a/testfiles-lua/test_structnum.pvt b/testfiles-lua/test_structnum.pvt
index a9e3ca3..3a119b0 100644
--- a/testfiles-lua/test_structnum.pvt
+++ b/testfiles-lua/test_structnum.pvt
@@ -19,7 +19,7 @@
 
 % suppress mathml-AF reading
 \tagpdfsetup{math/mathml/sources=} %
-\tagpdfsetup{math/mathml/AF=false}
+\tagpdfsetup{math/mathml/AF=false,attach-css=false}
 \begin{document}
 \ExplSyntaxOn