diff --git a/plugins/inputs/ntpq/ntpq.go b/plugins/inputs/ntpq/ntpq.go
index 067888b95..25d1fa3cc 100644
--- a/plugins/inputs/ntpq/ntpq.go
+++ b/plugins/inputs/ntpq/ntpq.go
@@ -223,6 +223,10 @@ func (n *NTPQ) gatherServer(acc telegraf.Accumulator, server string) {
 				}
 				fields[col.name] = value
 			case FieldDuration:
+				// Ignore fields only containing a minus
+				if raw == "-" {
+					continue
+				}
 				factor := int64(1)
 				suffix := raw[len(raw)-1:]
 				switch suffix {
diff --git a/plugins/inputs/ntpq/testcases/pool_when_minus/expected.out b/plugins/inputs/ntpq/testcases/pool_when_minus/expected.out
new file mode 100644
index 000000000..13cb8c442
--- /dev/null
+++ b/plugins/inputs/ntpq/testcases/pool_when_minus/expected.out
@@ -0,0 +1,2 @@
+ntpq,remote=0.eu.pool.ntp.o,refid=.POOL.,stratum=16,type=p poll=64i,reach=0i,delay=0.0,offset=0.0,jitter=0.0 0
+ntpq,remote=195.201.19.162,refid=187.182.182.166,stratum=3,type=u poll=64i,reach=1i,delay=12.692,offset=1.283,jitter=0.0 0
diff --git a/plugins/inputs/ntpq/testcases/pool_when_minus/input.txt b/plugins/inputs/ntpq/testcases/pool_when_minus/input.txt
new file mode 100644
index 000000000..1a2014b53
--- /dev/null
+++ b/plugins/inputs/ntpq/testcases/pool_when_minus/input.txt
@@ -0,0 +1,4 @@
+     remote           refid      st t when poll reach   delay   offset  jitter
+==============================================================================
+ 0.eu.pool.ntp.o .POOL.          16 p    -   64    0    0.000   +0.000   0.000
+ 195.201.19.162  187.182.182.166  3 u    -   64    1   12.692   +1.283   0.000
diff --git a/plugins/inputs/ntpq/testcases/pool_when_minus/telegraf.conf b/plugins/inputs/ntpq/testcases/pool_when_minus/telegraf.conf
new file mode 100644
index 000000000..1265dc219
--- /dev/null
+++ b/plugins/inputs/ntpq/testcases/pool_when_minus/telegraf.conf
@@ -0,0 +1 @@
+[[inputs.ntpq]]
\ No newline at end of file