diff --git a/plugins/inputs/ping/ping.go b/plugins/inputs/ping/ping.go
index de3c5fe8f..195c9d2d7 100644
--- a/plugins/inputs/ping/ping.go
+++ b/plugins/inputs/ping/ping.go
@@ -118,7 +118,7 @@ func (*Ping) SampleConfig() string {
 }
 
 func (p *Ping) Gather(acc telegraf.Accumulator) error {
-	if p.Interface != "" && p.listenAddr != "" {
+	if p.Interface != "" && p.listenAddr == "" {
 		p.listenAddr = getAddr(p.Interface)
 	}