diff --git a/data/conf/samples/apier/apier.json b/data/conf/samples/apier/apier.json
index 8a63f40eb..d45eee2de 100644
--- a/data/conf/samples/apier/apier.json
+++ b/data/conf/samples/apier/apier.json
@@ -35,6 +35,9 @@
 
 "cdrs": {
 	"enabled": true,						// start the CDR Server service:  <true|false>
+	"chargers_conns":[
+		{"address": "*internal"}
+	],
 	"rals_conns": [
 		{"address": "*internal"}     // address where to reach the Rater <""|*internal|127.0.0.1:2013>
 	],
diff --git a/data/conf/samples/cdrsonexpmaster/cdrsreplicationmaster.json b/data/conf/samples/cdrsonexpmaster/cdrsreplicationmaster.json
index f3d48fc2f..90ab96003 100644
--- a/data/conf/samples/cdrsonexpmaster/cdrsreplicationmaster.json
+++ b/data/conf/samples/cdrsonexpmaster/cdrsreplicationmaster.json
@@ -22,6 +22,12 @@
 "cdrs": {
 	"enabled": true,			// start the CDR Server service:  <true|false>
 	"store_cdrs": false,		// store cdrs in storDb
+	"chargers_conns":[
+		{"address": "*internal"}
+	],
+	"rals_conns": [							
+		{"address": "*internal"}
+	],
 	"online_cdr_exports": ["http_localhost", "amqp_localhost", "http_test_file", "amqp_test_file","aws_test_file","sqs_test_file","kafka_localhost","s3_test_file"],
 },
 
diff --git a/data/conf/samples/cdrsonexpslave/cdrsreplicationslave.json b/data/conf/samples/cdrsonexpslave/cdrsreplicationslave.json
index 51e0baa12..d43016883 100644
--- a/data/conf/samples/cdrsonexpslave/cdrsreplicationslave.json
+++ b/data/conf/samples/cdrsonexpslave/cdrsreplicationslave.json
@@ -20,6 +20,12 @@
 
 "cdrs": {
 	"enabled": true,						// start the CDR Server service:  <true|false>
+	"chargers_conns":[
+		{"address": "*internal"}
+	],
+	"rals_conns": [							
+		{"address": "*internal"}
+	],
 },
 
 "chargers": {
diff --git a/data/conf/samples/sessions/cgrates.json b/data/conf/samples/sessions/cgrates.json
index 0faba60c7..4c26382d1 100644
--- a/data/conf/samples/sessions/cgrates.json
+++ b/data/conf/samples/sessions/cgrates.json
@@ -36,6 +36,9 @@
 	"chargers_conns":[
 		{"address": "*internal"}
 	],
+	"rals_conns": [							
+		{"address": "*internal"}
+	],
 },
 
 
diff --git a/utils/map.go b/utils/map.go
index a71b6009a..4adad4a4f 100644
--- a/utils/map.go
+++ b/utils/map.go
@@ -299,7 +299,7 @@ func (fWp FlagsWithParams) GetBool(key string) (b bool) {
 	if v, b = fWp[key]; !b {
 		return // not present means false
 	}
-	if v != nil && len(v) != 0 {
+	if v == nil || len(v) == 0 {
 		return false // empty slice
 	}
 	return v[0] == "true" // check only the first element
diff --git a/utils/map_test.go b/utils/map_test.go
index 65d8bf14f..32e07ea3f 100644
--- a/utils/map_test.go
+++ b/utils/map_test.go
@@ -213,3 +213,27 @@ func TestFlagsToSlice(t *testing.T) {
 		t.Errorf("Expecting: %+v, received: %+v", sls, flgSls)
 	}
 }
+
+func TestFlagsWithParamsGetBool(t *testing.T) {
+	flagsWithParams := &FlagsWithParams{
+		"test":  []string{"string1", "string2"},
+		"test2": []string{"true", "string2"},
+		"empty": []string{},
+	}
+	key := "notpresent"
+	if rcv := flagsWithParams.GetBool(key); rcv != false {
+		t.Errorf("Expecting: false, received: %+v", ToJSON(rcv))
+	}
+	key = "empty"
+	if rcv := flagsWithParams.GetBool(key); rcv != false {
+		t.Errorf("Expecting: false, received: %+v", ToJSON(rcv))
+	}
+	key = "test"
+	if rcv := flagsWithParams.GetBool(key); rcv != false {
+		t.Errorf("Expecting: false, received: %+v", ToJSON(rcv))
+	}
+	key = "test2"
+	if rcv := flagsWithParams.GetBool(key); rcv != true {
+		t.Errorf("Expecting: true, received: %+v", ToJSON(rcv))
+	}
+}