diff --git a/library/compose/src/commonMain/kotlin/com/tunjid/treenav/compose/threepane/configurations/MovableSharedElementConfiguration.kt b/library/compose/src/commonMain/kotlin/com/tunjid/treenav/compose/threepane/configurations/MovableSharedElementConfiguration.kt
index 8a7505a..9ba39cf 100644
--- a/library/compose/src/commonMain/kotlin/com/tunjid/treenav/compose/threepane/configurations/MovableSharedElementConfiguration.kt
+++ b/library/compose/src/commonMain/kotlin/com/tunjid/treenav/compose/threepane/configurations/MovableSharedElementConfiguration.kt
@@ -58,7 +58,10 @@ fun <NavigationState : Node, Destination : Node> PanedNavHostConfiguration<
         )
     }
 
-fun <Destination : Node> PaneScope<ThreePane, Destination>.movableSharedElementScope(): MovableSharedElementScope {
+fun <Destination : Node> PaneScope<
+        ThreePane,
+        Destination
+        >.requireThreePaneMovableSharedElementScope(): MovableSharedElementScope {
     check(this is ThreePaneMovableSharedElementScope) {
         """
             The current AdaptivePaneScope (${this::class.qualifiedName}) is not an instance of
diff --git a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chat/Strategy.kt b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chat/Strategy.kt
index b8fa6dd..452a8ad 100644
--- a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chat/Strategy.kt
+++ b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chat/Strategy.kt
@@ -23,12 +23,10 @@ import androidx.lifecycle.compose.LocalLifecycleOwner
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.coroutineScope
 import androidx.lifecycle.viewmodel.compose.viewModel
-import com.tunjid.demo.common.ui.data.ChatsRepository
-import com.tunjid.demo.common.ui.data.ProfileRepository
 import com.tunjid.demo.common.ui.data.SampleDestination
 import com.tunjid.demo.common.ui.data.SampleDestination.NavTabs
 import com.tunjid.treenav.compose.threepane.ThreePane
-import com.tunjid.treenav.compose.threepane.configurations.movableSharedElementScope
+import com.tunjid.treenav.compose.threepane.configurations.requireThreePaneMovableSharedElementScope
 import com.tunjid.treenav.compose.threepane.threePaneListDetailStrategy
 
 fun chatPaneStrategy() = threePaneListDetailStrategy<SampleDestination>(
@@ -48,7 +46,7 @@ fun chatPaneStrategy() = threePaneListDetailStrategy<SampleDestination>(
             )
         }
         ChatScreen(
-            movableSharedElementScope = movableSharedElementScope(),
+            movableSharedElementScope = requireThreePaneMovableSharedElementScope(),
             state = viewModel.state.collectAsStateWithLifecycle().value,
             onAction = viewModel.accept,
             modifier = Modifier.fillMaxSize(),
diff --git a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chatrooms/Strategy.kt b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chatrooms/Strategy.kt
index 30340a2..273b8ba 100644
--- a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chatrooms/Strategy.kt
+++ b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/chatrooms/Strategy.kt
@@ -24,7 +24,7 @@ import androidx.lifecycle.coroutineScope
 import androidx.lifecycle.viewmodel.compose.viewModel
 import com.tunjid.demo.common.ui.data.ChatsRepository
 import com.tunjid.demo.common.ui.data.SampleDestination
-import com.tunjid.treenav.compose.threepane.configurations.movableSharedElementScope
+import com.tunjid.treenav.compose.threepane.configurations.requireThreePaneMovableSharedElementScope
 import com.tunjid.treenav.compose.threepane.threePaneListDetailStrategy
 
 fun chatRoomPaneStrategy(
@@ -38,7 +38,7 @@ fun chatRoomPaneStrategy(
             )
         }
         ChatRoomsScreen(
-            movableSharedElementScope = movableSharedElementScope(),
+            movableSharedElementScope = requireThreePaneMovableSharedElementScope(),
             state = viewModel.state.collectAsStateWithLifecycle().value,
             onAction = viewModel.accept,
             modifier = Modifier.fillMaxSize(),
diff --git a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/me/Strategy.kt b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/me/Strategy.kt
index e220aaf..a16fccb 100644
--- a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/me/Strategy.kt
+++ b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/me/Strategy.kt
@@ -23,7 +23,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.tunjid.demo.common.ui.data.SampleDestination
 import com.tunjid.demo.common.ui.profile.ProfileScreen
 import com.tunjid.demo.common.ui.profile.ProfileViewModel
-import com.tunjid.treenav.compose.threepane.configurations.movableSharedElementScope
+import com.tunjid.treenav.compose.threepane.configurations.requireThreePaneMovableSharedElementScope
 import com.tunjid.treenav.compose.threepane.threePaneListDetailStrategy
 
 fun mePaneStrategy(
@@ -38,7 +38,7 @@ fun mePaneStrategy(
             )
         }
         ProfileScreen(
-            movableSharedElementScope = movableSharedElementScope(),
+            movableSharedElementScope = requireThreePaneMovableSharedElementScope(),
             state = viewModel.state.collectAsStateWithLifecycle().value,
             onAction = viewModel.accept
         )
diff --git a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/profile/Strategy.kt b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/profile/Strategy.kt
index 26658a3..de8a569 100644
--- a/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/profile/Strategy.kt
+++ b/sample/common/src/commonMain/kotlin/com/tunjid/demo/common/ui/profile/Strategy.kt
@@ -25,7 +25,7 @@ import androidx.lifecycle.viewmodel.compose.viewModel
 import com.tunjid.demo.common.ui.data.SampleDestination
 import com.tunjid.demo.common.ui.data.SampleDestination.NavTabs
 import com.tunjid.treenav.compose.threepane.ThreePane
-import com.tunjid.treenav.compose.threepane.configurations.movableSharedElementScope
+import com.tunjid.treenav.compose.threepane.configurations.requireThreePaneMovableSharedElementScope
 import com.tunjid.treenav.compose.threepane.threePaneListDetailStrategy
 
 fun profilePaneStrategy() = threePaneListDetailStrategy<SampleDestination>(
@@ -48,7 +48,7 @@ fun profilePaneStrategy() = threePaneListDetailStrategy<SampleDestination>(
             )
         }
         ProfileScreen(
-            movableSharedElementScope = movableSharedElementScope(),
+            movableSharedElementScope = requireThreePaneMovableSharedElementScope(),
             state = viewModel.state.collectAsStateWithLifecycle().value,
             onAction = viewModel.accept,
             modifier = Modifier.fillMaxSize(),