diff --git a/libc/Android.mk b/libc/Android.mk
index 1fb5e84..0487a8f 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -94,6 +94,7 @@
     bionic/access.cpp \
     bionic/assert.cpp \
     bionic/atof.cpp \
+    bionic/bionic_systrace.cpp \
     bionic/bionic_time_conversions.cpp \
     bionic/brk.cpp \
     bionic/c16rtomb.cpp \