diff --git a/libcutils/sched_policy.c b/libcutils/sched_policy.c
index 6bba3a7b1..7bb8223be 100644
--- a/libcutils/sched_policy.c
+++ b/libcutils/sched_policy.c
@@ -306,7 +306,7 @@ int set_sched_policy(int tid, SchedPolicy policy)
     char thread_name[255];
     int fd;
 
-    sprintf(statfile, "/proc/%d/stat", tid);
+    snprintf(statfile, sizeof(statfile), "/proc/%d/stat", tid);
     memset(thread_name, 0, sizeof(thread_name));
 
     fd = open(statfile, O_RDONLY);