diff --git a/kyo-core/shared/src/main/scala/kyo/layers.scala b/kyo-core/shared/src/main/scala/kyo/layers.scala
index 4241e4a34..8ff8da25b 100644
--- a/kyo-core/shared/src/main/scala/kyo/layers.scala
+++ b/kyo-core/shared/src/main/scala/kyo/layers.scala
@@ -5,7 +5,7 @@ object layers {
   trait Layer[In, Out] { self =>
     def run[T, S](effect: T > (In with S))(implicit fl: Flat[T > (In with S)]): T > (S with Out)
 
-    final def add[Out1, In1](other: Layer[In1, Out1]): Layer[In with In1, Out with Out1] =
+    final def andThen[Out1, In1](other: Layer[In1, Out1]): Layer[In with In1, Out with Out1] =
       new Layer[In with In1, Out with Out1] {
         override def run[T, S](
             effect: T > (In with In1 with S)
diff --git a/kyo-core/shared/src/test/scala/kyoTest/layersTest.scala b/kyo-core/shared/src/test/scala/kyoTest/layersTest.scala
index 59ba8bb09..d7951ee77 100644
--- a/kyo-core/shared/src/test/scala/kyoTest/layersTest.scala
+++ b/kyo-core/shared/src/test/scala/kyoTest/layersTest.scala
@@ -22,7 +22,7 @@ class layersTest extends KyoTest {
   val dep3Layer = Envs[Dep3].layer(Envs[Dep].get.map(v => Dep3(v.dep3)))
 
   "Envs layers should be composable and provide multiple dependencies" in {
-    val layer = (dep1Layer add dep2Layer add dep3Layer) chain depLayer
+    val layer = (dep1Layer andThen dep2Layer andThen dep3Layer) chain depLayer
 
     val effect = for {
       dep1 <- Envs[Dep1].get
@@ -46,7 +46,7 @@ class layersTest extends KyoTest {
 
   "Aborts layers should be composable and handle multiple error types" in {
     val layer =
-      (stringToTE1Layer add dep1ToTE1Layer add throwableToTE1Layer) chain testError1ToTE2Layer
+      (stringToTE1Layer andThen dep1ToTE1Layer andThen throwableToTE1Layer) chain testError1ToTE2Layer
 
     val effect1 = for {
       _ <- Aborts[String].fail("string failure")