diff --git a/ptp-utilities.c b/ptp-utilities.c
index 7019187e..fa1c6407 100644
--- a/ptp-utilities.c
+++ b/ptp-utilities.c
@@ -68,7 +68,7 @@ int get_nqptp_data(struct shm_structure *nqptp_data) {
 int ptp_get_clock_info(uint64_t *actual_clock_id, uint64_t *time_of_sample, uint64_t *raw_offset,
                        uint64_t *mastership_start_time) {
   int response = clock_ok;
-  pthread_cleanup_debug_mutex_lock(&ptp_access_mutex, 20000, 1);
+  pthread_cleanup_debug_mutex_lock(&ptp_access_mutex, 50000, 1);
   if (actual_clock_id != NULL)
     *actual_clock_id = 0;
   if (raw_offset != NULL)