diff --git a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealConstraintLayout.kt b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealConstraintLayout.kt
index e118a6e..11843a1 100644
--- a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealConstraintLayout.kt
+++ b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealConstraintLayout.kt
@@ -14,7 +14,7 @@ import com.jem.easyreveal.clippathproviders.*
 /**
  * `EasyRevealinearLayout` is a custom [ConstraintLayout] that implements [RevealLayout].
  */
-class EasyRevealConstraintLayout : ConstraintLayout, RevealLayout {
+open class EasyRevealConstraintLayout : ConstraintLayout, RevealLayout {
     // Store path in local variable rather then getting it from ClipPathProvider each time
     private var path: Path? = null
     // RevealAnimator is used to perform reveal/hide animation
diff --git a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealFrameLayout.kt b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealFrameLayout.kt
index 9fb0a15..d002e9b 100644
--- a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealFrameLayout.kt
+++ b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealFrameLayout.kt
@@ -16,7 +16,7 @@ import com.jem.easyreveal.clippathproviders.*
 /**
  * `EasyRevealinearLayout` is a custom [FrameLayout] that implements [RevealLayout].
  */
-class EasyRevealFrameLayout : FrameLayout, RevealLayout {
+open class EasyRevealFrameLayout : FrameLayout, RevealLayout {
     // Store path in local variable rather then getting it from ClipPathProvider each time
     private var path: Path? = null
     // RevealAnimator is used to perform reveal/hide animation
diff --git a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealLinearLayout.kt b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealLinearLayout.kt
index 5114576..51bcd34 100644
--- a/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealLinearLayout.kt
+++ b/easyreveal/src/main/java/com/jem/easyreveal/layouts/EasyRevealLinearLayout.kt
@@ -16,7 +16,7 @@ import com.jem.easyreveal.clippathproviders.*
 /**
  * `EasyRevealinearLayout` is a custom [LinearLayout] that implements [RevealLayout].
  */
-class EasyRevealLinearLayout : LinearLayout, RevealLayout {
+open class EasyRevealLinearLayout : LinearLayout, RevealLayout {
     // Store path in local variable rather then getting it from ClipPathProvider each time
     private var path: Path? = null
     // RevealAnimator is used to perform reveal/hide animation