diff --git a/components/style/properties/data.py b/components/style/properties/data.py
index 53512adb22d..1ad523bd905 100644
--- a/components/style/properties/data.py
+++ b/components/style/properties/data.py
@@ -628,7 +628,7 @@ def _remove_common_first_line_and_first_letter_properties(props):
     props.remove("text-emphasis-color")
     props.remove("text-indent")
     props.remove("text-decoration-skip-ink")
-    props.remove("text-decoration-width")
+    props.remove("text-decoration-thickness")
     props.remove("text-underline-offset")
 
 
diff --git a/components/style/properties/longhands/text.mako.rs b/components/style/properties/longhands/text.mako.rs
index 0e741774837..06db3307238 100644
--- a/components/style/properties/longhands/text.mako.rs
+++ b/components/style/properties/longhands/text.mako.rs
@@ -66,11 +66,11 @@ ${helpers.predefined_type(
 )}
 
 ${helpers.predefined_type(
-   "text-decoration-width",
+   "text-decoration-thickness",
    "LengthOrAuto",
    "computed::LengthOrAuto::auto()",
    products="gecko",
    animation_value_type="ComputedValue",
-   gecko_pref="layout.css.text-decoration-width.enabled",
+   gecko_pref="layout.css.text-decoration-thickness.enabled",
    spec="https://drafts.csswg.org/css-text-decor-4/#text-decoration-width-property"
 )}