diff --git a/private/traced_probes.te b/private/traced_probes.te
index dfc4d07..0d68fa3 100644
--- a/private/traced_probes.te
+++ b/private/traced_probes.te
@@ -90,6 +90,9 @@
 allow traced_probes sysfs_devfreq_dir:dir r_dir_perms;
 allow traced_probes sysfs_devfreq_cur:file r_file_perms;
 
+# Allow access to read /proc/diskstats for I/O profiling.
+allow traced_probes proc_diskstats:file r_file_perms;
+
 # Allow access to the IHealth and IPowerStats HAL service for tracing battery counters.
 hal_client_domain(traced_probes, hal_health)
 hal_client_domain(traced_probes, hal_power_stats)