diff --git a/libc/Android.bp b/libc/Android.bp
index 7175c77..7abd6b0 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -28,6 +28,7 @@
     "bionic/isatty.c",
     "bionic/sched_cpualloc.c",
     "bionic/sched_cpucount.c",
+    "bionic/sysprop_helpers.cpp",
     "stdio/fmemopen.cpp",
     "stdio/parsefloat.c",
     "stdio/refill.c",