diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/EasingStyleValue.h b/Userland/Libraries/LibWeb/CSS/StyleValues/EasingStyleValue.h
index f3f38faf8f7..6c42eda86c8 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/EasingStyleValue.h
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/EasingStyleValue.h
@@ -91,7 +91,7 @@ public:
     bool properties_equal(EasingStyleValue const& other) const { return m_function == other.m_function; }
 
 private:
-    EasingStyleValue(Function function)
+    EasingStyleValue(Function const& function)
         : StyleValueWithDefaultOperators(Type::Easing)
         , m_function(function)
     {