diff --git a/application/src/main/resources/thingsboard.yml b/application/src/main/resources/thingsboard.yml
index fb1cd746f3..9edd5d0ed5 100644
--- a/application/src/main/resources/thingsboard.yml
+++ b/application/src/main/resources/thingsboard.yml
@@ -260,7 +260,7 @@ sql:
     stats_print_interval_ms: "${SQL_EVENTS_BATCH_STATS_PRINT_MS:10000}"
     batch_threads: "${SQL_EVENTS_BATCH_THREADS:3}" # batch thread count have to be a prime number like 3 or 5 to gain perfect hash distribution
     partition_size: "${SQL_EVENTS_REGULAR_PARTITION_SIZE_HOURS:168}" # Number of hours to partition the events. The current value corresponds to one week.
-    debug_partition_size: "${SQL_EVENTS_REGULAR_PARTITION_SIZE_HOURS:1}" # Number of hours to partition the debug events. The current value corresponds to one hour.
+    debug_partition_size: "${SQL_EVENTS_DEBUG_PARTITION_SIZE_HOURS:1}" # Number of hours to partition the debug events. The current value corresponds to one hour.
   edge_events:
     batch_size: "${SQL_EDGE_EVENTS_BATCH_SIZE:1000}"
     batch_max_delay: "${SQL_EDGE_EVENTS_BATCH_MAX_DELAY_MS:100}"