diff --git a/config/flags.go b/config/flags.go
index ac455ebf8a1c..1831adcd6323 100644
--- a/config/flags.go
+++ b/config/flags.go
@@ -124,9 +124,9 @@ func addNodeFlags(fs *flag.FlagSet) {
 	fs.Duration(NetworkPeerListGossipFreqKey, constants.DefaultNetworkPeerListGossipFreq, gossipHelpMsg)
 
 	// Public IP Resolution
-	fs.String(PublicIPKey, "", "Public IP of this node for P2P communication. If empty, try to discover with NAT. Ignored if dynamic-public-ip is non-empty")
+	fs.String(PublicIPKey, "", "Public IP of this node for P2P communication. If empty, try to discover with NAT")
 	fs.Duration(PublicIPResolutionFreqKey, 5*time.Minute, "Frequency at which this node resolves/updates its public IP and renew NAT mappings, if applicable")
-	fs.String(PublicIPResolutionServiceKey, "", "Only acceptable values are 'ifconfigco', 'opendns' or 'ifconfigme'. When provided, the node will use that service to periodically resolve/update its public IP")
+	fs.String(PublicIPResolutionServiceKey, "", fmt.Sprintf("Only acceptable values are 'ifconfigco', 'opendns' or 'ifconfigme'. When provided, the node will use that service to periodically resolve/update its public IP. Ignored if %s is set", PublicIPKey))
 
 	// Inbound Connection Throttling
 	fs.Duration(InboundConnUpgradeThrottlerCooldownKey, constants.DefaultInboundConnUpgradeThrottlerCooldown, "Upgrade an inbound connection from a given IP at most once per this duration. If 0, don't rate-limit inbound connection upgrades")