diff --git a/Sources/Layout/NSLayoutConstraint.swift b/Sources/Layout/NSLayoutConstraint.swift
index 4b6a695f..13d90d78 100644
--- a/Sources/Layout/NSLayoutConstraint.swift
+++ b/Sources/Layout/NSLayoutConstraint.swift
@@ -120,14 +120,25 @@ extension NSLayoutConstraint.Axis {
 
     internal var orientation: String {
         switch self {
-        case .vertical:
-            return "V"
         case .horizontal:
             return "H"
+        case .vertical:
+            return "V"
         @unknown default:
             return "H"
         }
     }
+
+    internal var attribute: NSLayoutConstraint.Attribute {
+        switch self {
+        case .horizontal:
+            return .centerX
+        case .vertical:
+            return .centerY
+        @unknown default:
+            return .notAnAttribute
+        }
+    }
 }
 
 // MARK: - NSLayoutConstraint Array Helpers
diff --git a/Tests/LayoutTests/NSLayoutConstraintTests.swift b/Tests/LayoutTests/NSLayoutConstraintTests.swift
index ccff5986..36343b48 100644
--- a/Tests/LayoutTests/NSLayoutConstraintTests.swift
+++ b/Tests/LayoutTests/NSLayoutConstraintTests.swift
@@ -247,6 +247,19 @@ final class NSLayoutConstraintTests: XCTestCase {
         expect(verticalAxis.orientation) == "V"
     }
 
+    func testAxisAttribute() {
+
+        // GIVEN
+
+        let horizontalAxis: NSLayoutConstraint.Axis = .horizontal
+        let verticalAxis: NSLayoutConstraint.Axis = .vertical
+
+        // THEN
+
+        expect(horizontalAxis.attribute) == .centerX
+        expect(verticalAxis.attribute) == .centerY
+    }
+
     func testBatchActivation() {
 
         // GIVEN