diff --git a/Tests/LibWeb/Text/expected/DOM/Element-text-transform-lowercase.txt b/Tests/LibWeb/Text/expected/DOM/Element-text-transform-lowercase.txt
new file mode 100644
index 00000000000..2a7c4b65321
--- /dev/null
+++ b/Tests/LibWeb/Text/expected/DOM/Element-text-transform-lowercase.txt
@@ -0,0 +1 @@
+ i̇̀ i̇̀ i̇́ i̇́ i̇̃ i̇̃ i̇̀ i̇̀ j̇́ j̇́ į̇̃ į̇̃
diff --git a/Tests/LibWeb/Text/input/DOM/Element-text-transform-lowercase.html b/Tests/LibWeb/Text/input/DOM/Element-text-transform-lowercase.html
new file mode 100644
index 00000000000..409e00aec45
--- /dev/null
+++ b/Tests/LibWeb/Text/input/DOM/Element-text-transform-lowercase.html
@@ -0,0 +1,27 @@
+
+
+
+
+
+
+
+
+
+
+ Ì i̇̀ Í i̇́ Ĩ i̇̃
+ Ì i̇̀ J́ j̇́ Į̃ į̇̃
+
+
+
+
+
+
diff --git a/Userland/Libraries/LibWeb/Layout/TextNode.cpp b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
index 4a2cac4a122..0663e00d935 100644
--- a/Userland/Libraries/LibWeb/Layout/TextNode.cpp
+++ b/Userland/Libraries/LibWeb/Layout/TextNode.cpp
@@ -285,7 +285,7 @@ static ErrorOr apply_text_transform(String const& string, CSS::TextTrans
case CSS::TextTransform::Uppercase:
return string.to_uppercase(locale);
case CSS::TextTransform::Lowercase:
- return string.to_lowercase();
+ return string.to_lowercase(locale);
case CSS::TextTransform::None:
return string;
case CSS::TextTransform::MathAuto: