diff --git a/cmd/sync/aws.go b/cmd/sync/aws.go
index 02024c556..bcbb03111 100644
--- a/cmd/sync/aws.go
+++ b/cmd/sync/aws.go
@@ -260,7 +260,7 @@ func validateAWSConfig(cfg *awsConfig) error {
 	}
 
 	if len(cfg.Upstreams) == 0 {
-		return fmt.Errorf("There are no upstreams found in the config file")
+		return fmt.Errorf("there are no upstreams found in the config file")
 	}
 
 	for _, ups := range cfg.Upstreams {
diff --git a/cmd/sync/azure.go b/cmd/sync/azure.go
index 7ded91e3f..54da3c899 100644
--- a/cmd/sync/azure.go
+++ b/cmd/sync/azure.go
@@ -172,7 +172,7 @@ func validateAzureConfig(cfg *azureConfig) error {
 	}
 
 	if len(cfg.Upstreams) == 0 {
-		return fmt.Errorf("There are no upstreams found in the config file")
+		return fmt.Errorf("there are no upstreams found in the config file")
 	}
 
 	for _, ups := range cfg.Upstreams {
diff --git a/cmd/sync/errormessages.go b/cmd/sync/errormessages.go
index afddce0e0..184cfca63 100644
--- a/cmd/sync/errormessages.go
+++ b/cmd/sync/errormessages.go
@@ -1,16 +1,16 @@
 package main
 
 const (
-	errorMsgFormat                 = "The mandatory field %v is either empty or missing in the config file"
-	intervalErrorMsg               = "The mandatory field sync_interval_in_seconds is either 0 or missing in the config file"
-	cloudProviderErrorMsg          = "The field cloud_provider has invalid value %v in the config file"
+	errorMsgFormat                 = "the mandatory field %v is either empty or missing in the config file"
+	intervalErrorMsg               = "the mandatory field sync_interval_in_seconds is either 0 or missing in the config file"
+	cloudProviderErrorMsg          = "the field cloud_provider has invalid value %v in the config file"
 	defaultCloudProvider           = "AWS"
-	upstreamNameErrorMsg           = "The mandatory field name is either empty or missing for an upstream in the config file"
-	upstreamErrorMsgFormat         = "The mandatory field %v is either empty or missing for the upstream %v in the config file"
-	upstreamPortErrorMsgFormat     = "The mandatory field port is either zero or missing for the upstream %v in the config file"
-	upstreamKindErrorMsgFormat     = "The mandatory field kind is either not equal to http or tcp or missing for the upstream %v in the config file"
-	upstreamMaxConnsErrorMsgFmt    = "The field max_conns has invalid value %v in the config file"
-	upstreamMaxFailsErrorMsgFmt    = "The field max_fails has invalid value %v in the config file"
-	upstreamFailTimeoutErrorMsgFmt = "The field fail_timeout has invalid value %v in the config file"
-	upstreamSlowStartErrorMsgFmt   = "The field slow_start has invalid value %v in the config file"
+	upstreamNameErrorMsg           = "the mandatory field name is either empty or missing for an upstream in the config file"
+	upstreamErrorMsgFormat         = "the mandatory field %v is either empty or missing for the upstream %v in the config file"
+	upstreamPortErrorMsgFormat     = "the mandatory field port is either zero or missing for the upstream %v in the config file"
+	upstreamKindErrorMsgFormat     = "the mandatory field kind is either not equal to http or tcp or missing for the upstream %v in the config file"
+	upstreamMaxConnsErrorMsgFmt    = "the field max_conns has invalid value %v in the config file"
+	upstreamMaxFailsErrorMsgFmt    = "the field max_fails has invalid value %v in the config file"
+	upstreamFailTimeoutErrorMsgFmt = "the field fail_timeout has invalid value %v in the config file"
+	upstreamSlowStartErrorMsgFmt   = "the field slow_start has invalid value %v in the config file"
 )