diff --git a/libc/Android.mk b/libc/Android.mk
index d4ccefb..4e62765 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -104,7 +104,6 @@
     stdlib/putenv.c \
     stdlib/setenv.c \
     stdlib/strtod.c \
-    unistd/alarm.c \
     unistd/syslog.c \
     unistd/time.c \
 
@@ -316,6 +315,7 @@
     upstream-netbsd/lib/libc/unistd/killpg.c \
 
 libc_upstream_openbsd_src_files := \
+    upstream-openbsd/lib/libc/gen/alarm.c \
     upstream-openbsd/lib/libc/gen/exec.c \
     upstream-openbsd/lib/libc/gen/fnmatch.c \
     upstream-openbsd/lib/libc/gen/ftok.c \