diff --git a/libs/renderengine/Android.bp b/libs/renderengine/Android.bp
index 7639fab..d248ea0 100644
--- a/libs/renderengine/Android.bp
+++ b/libs/renderengine/Android.bp
@@ -100,6 +100,7 @@
         "skia/debug/SkiaCapture.cpp",
         "skia/debug/SkiaMemoryReporter.cpp",
         "skia/filters/BlurFilter.cpp",
+        "skia/filters/GainmapFactory.cpp",
         "skia/filters/GaussianBlurFilter.cpp",
         "skia/filters/KawaseBlurDualFilter.cpp",
         "skia/filters/KawaseBlurFilter.cpp",