diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index 63f7efc..34b8281 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -146,6 +146,7 @@
         "DisplayHardware/ComposerHal.cpp",
         "DisplayHardware/DisplayIdentification.cpp",
         "DisplayHardware/FramebufferSurface.cpp",
+        "DisplayHardware/Hash.cpp",
         "DisplayHardware/HWC2.cpp",
         "DisplayHardware/HWComposer.cpp",
         "DisplayHardware/PowerAdvisor.cpp",