diff --git a/libs/ftl/Android.bp b/libs/ftl/Android.bp
index 81113bc..df0b271 100644
--- a/libs/ftl/Android.bp
+++ b/libs/ftl/Android.bp
@@ -24,6 +24,7 @@
         "match_test.cpp",
         "non_null_test.cpp",
         "optional_test.cpp",
+        "shared_mutex_test.cpp",
         "small_map_test.cpp",
         "small_vector_test.cpp",
         "static_vector_test.cpp",