diff --git a/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp b/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
index 97bd79f..bc15dec 100644
--- a/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerLifecycleManagerTest.cpp
@@ -538,7 +538,8 @@
               ftl::Flags<RequestedLayerState::Changes>(
                       RequestedLayerState::Changes::Content |
                       RequestedLayerState::Changes::AffectsChildren |
-                      RequestedLayerState::Changes::VisibleRegion)
+                      RequestedLayerState::Changes::VisibleRegion |
+                      RequestedLayerState::Changes::Input)
                       .string());
     EXPECT_EQ(mLifecycleManager.getChangedLayers()[0]->color.a, static_cast<half>(startingAlpha));
     mLifecycleManager.commitChanges();
@@ -551,7 +552,8 @@
               ftl::Flags<RequestedLayerState::Changes>(
                       RequestedLayerState::Changes::Content |
                       RequestedLayerState::Changes::AffectsChildren |
-                      RequestedLayerState::Changes::VisibleRegion)
+                      RequestedLayerState::Changes::VisibleRegion |
+                      RequestedLayerState::Changes::Input)
                       .string());
     EXPECT_EQ(mLifecycleManager.getChangedLayers()[0]->color.a, static_cast<half>(endingAlpha));
     mLifecycleManager.commitChanges();
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index bd0accd..8cf3f03 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -1161,6 +1161,16 @@
             gui::WindowInfo::InputConfig::TRUSTED_OVERLAY));
 }
 
+TEST_F(LayerSnapshotTest, alphaChangesPropagateToInput) {
+    Region touch{Rect{0, 0, 1000, 1000}};
+    setTouchableRegion(1, touch);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+
+    setAlpha(1, 0.5f);
+    UPDATE_AND_VERIFY(mSnapshotBuilder, STARTING_ZORDER);
+    EXPECT_EQ(getSnapshot(1)->inputInfo.alpha, 0.5f);
+}
+
 TEST_F(LayerSnapshotTest, isFrontBuffered) {
     setBuffer(1,
               std::make_shared<renderengine::mock::FakeExternalTexture>(