diff --git a/pkg/apis/externaldns/types.go b/pkg/apis/externaldns/types.go
index e6d238a94..724fa2ed8 100644
--- a/pkg/apis/externaldns/types.go
+++ b/pkg/apis/externaldns/types.go
@@ -425,7 +425,7 @@ func (cfg *Config) ParseFlags(args []string) error {
 	app.Flag("aws-zone-type", "When using the AWS provider, filter for zones of this type (optional, options: public, private)").Default(defaultConfig.AWSZoneType).EnumVar(&cfg.AWSZoneType, "", "public", "private")
 	app.Flag("aws-zone-tags", "When using the AWS provider, filter for zones with these tags").Default("").StringsVar(&cfg.AWSZoneTagFilter)
 	app.Flag("aws-assume-role", "When using the AWS provider, assume this IAM role. Useful for hosted zones in another AWS account. Specify the full ARN, e.g. `arn:aws:iam::123455567:role/external-dns` (optional)").Default(defaultConfig.AWSAssumeRole).StringVar(&cfg.AWSAssumeRole)
-	app.Flag("aws-assume-role-external-id", "When using the AWS provider and assuming a role then specify this external iD` (optional)").Default(defaultConfig.AWSAssumeRoleExternalID).StringVar(&cfg.AWSAssumeRoleExternalID)
+	app.Flag("aws-assume-role-external-id", "When using the AWS provider and assuming a role then specify this external ID` (optional)").Default(defaultConfig.AWSAssumeRoleExternalID).StringVar(&cfg.AWSAssumeRoleExternalID)
 	app.Flag("aws-batch-change-size", "When using the AWS provider, set the maximum number of changes that will be applied in each batch.").Default(strconv.Itoa(defaultConfig.AWSBatchChangeSize)).IntVar(&cfg.AWSBatchChangeSize)
 	app.Flag("aws-batch-change-interval", "When using the AWS provider, set the interval between batch changes.").Default(defaultConfig.AWSBatchChangeInterval.String()).DurationVar(&cfg.AWSBatchChangeInterval)
 	app.Flag("aws-evaluate-target-health", "When using the AWS provider, set whether to evaluate the health of a DNS target (default: enabled, disable with --no-aws-evaluate-target-health)").Default(strconv.FormatBool(defaultConfig.AWSEvaluateTargetHealth)).BoolVar(&cfg.AWSEvaluateTargetHealth)