diff --git a/Android.bp b/Android.bp
index b1e7468..4379b19 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1101,6 +1101,7 @@
         "gm/arithmode.cpp",
         "gm/atlastext.cpp",
         "gm/b_119394958.cpp",
+        "gm/backdrop.cpp",
         "gm/badpaint.cpp",
         "gm/beziereffects.cpp",
         "gm/beziers.cpp",
@@ -2048,6 +2049,7 @@
         "gm/arithmode.cpp",
         "gm/atlastext.cpp",
         "gm/b_119394958.cpp",
+        "gm/backdrop.cpp",
         "gm/badpaint.cpp",
         "gm/beziereffects.cpp",
         "gm/beziers.cpp",