diff --git a/spec/selector_spec.cr b/spec/selector_spec.cr
index 18109b1..e6d9e14 100644
--- a/spec/selector_spec.cr
+++ b/spec/selector_spec.cr
@@ -74,7 +74,7 @@ module CSS::SelectorSpec
       display :none
     end
 
-    rule div <= CSS::NthOfType.new(:odd) do
+    rule div <= nth_of_type(:odd) do
       display :none
     end
 
diff --git a/src/stylesheet.cr b/src/stylesheet.cr
index 5dad1ca..d0708aa 100644
--- a/src/stylesheet.cr
+++ b/src/stylesheet.cr
@@ -28,6 +28,10 @@ module CSS
       CSS::CalcFunctionCall.new(calculation)
     end
 
+    def self.nth_of_type(exp : Int32 | String | CSS::NthOfType::Static)
+      CSS::NthOfType.new(exp)
+    end
+
     # Type-safe helper for length/percentage `clamp()` values.
     #
     # Note: this helper enforces units for non-zero number literals (same as property setters).