diff --git a/scripts/lua/modules/timeseries/schemas/ts_5min.lua b/scripts/lua/modules/timeseries/schemas/ts_5min.lua
index 444f5c6ee73a..b9b8d6837792 100644
--- a/scripts/lua/modules/timeseries/schemas/ts_5min.lua
+++ b/scripts/lua/modules/timeseries/schemas/ts_5min.lua
@@ -447,13 +447,13 @@ schema:addMetric("bytes_rcvd")
 schema = ts_utils.newSchema("snmp_device:poll_duration", {
     step = 300,
     rrd_heartbeat = 3000,
-    rrd_fname = "duration",
+    rrd_fname = "poll_duration",
     metrics_type = ts_utils.metrics.gauge,
     is_system_schema = true
 })
 schema:addTag("ifid")
 schema:addTag("device")
-schema:addMetric("duration")
+schema:addMetric("poll_duration")
 
 schema = ts_utils.newSchema("snmp_if:traffic", {
     step = 300,
diff --git a/scripts/lua/modules/timeseries/ts_utils_core.lua b/scripts/lua/modules/timeseries/ts_utils_core.lua
index 2aef486cbe34..21db898e60ac 100644
--- a/scripts/lua/modules/timeseries/ts_utils_core.lua
+++ b/scripts/lua/modules/timeseries/ts_utils_core.lua
@@ -860,7 +860,7 @@ function ts_utils.getPossiblyChangedSchemas()
     "mac:arp_rqst_sent_rcvd_rpls", -- Active Monitoring
     "am_host:http_stats_min", "am_host:https_stats_min", "am_host:val_min", "am_host:http_stats_5mins",
     "am_host:https_stats_5mins", "am_host:val_5mins", "am_host:http_stats_hour", "am_host:https_stats_hour",
-    "am_host:val_hour", "snmp_if:cbqos" }
+    "am_host:val_hour", "snmp_if:cbqos", "snmp_device:poll_duration" }
 end
 
 -- ##############################################