diff --git a/libc/system_properties/Android.bp b/libc/system_properties/Android.bp
index 8780dda..dfe7a52 100644
--- a/libc/system_properties/Android.bp
+++ b/libc/system_properties/Android.bp
@@ -8,9 +8,11 @@
         "contexts_serialized.cpp",
         "prop_area.cpp",
         "prop_info.cpp",
+        "prop_trace.cpp",
         "system_properties.cpp",
     ],
     whole_static_libs: [
+        "libc_bionic_systrace",
         "libpropertyinfoparser",
     ],
     header_libs: [