diff --git a/api/src/main/java/org/code_house/bacnet4j/wrapper/api/Device.java b/api/src/main/java/org/code_house/bacnet4j/wrapper/api/Device.java
index f777ff0..9f83ade 100644
--- a/api/src/main/java/org/code_house/bacnet4j/wrapper/api/Device.java
+++ b/api/src/main/java/org/code_house/bacnet4j/wrapper/api/Device.java
@@ -87,21 +87,21 @@ public String getVendorName() {
         return vendorName;
     }
 
-	public int getVendorIdentifier() {
-		return vendorIdentifier;
-	}
+    public int getVendorIdentifier() {
+        return vendorIdentifier;
+    }
 
-	public void setVendorIdentifier(int vendorIdentifier) {
-		this.vendorIdentifier = vendorIdentifier;
-	}
+    public void setVendorIdentifier(int vendorIdentifier) {
+        this.vendorIdentifier = vendorIdentifier;
+    }
 
-	public String getSerialNumber() {
-		return serialNumber;
-	}
+    public String getSerialNumber() {
+        return serialNumber;
+    }
 
-	public void setSerialNumber(String serialNumber) {
-		this.serialNumber = serialNumber;
-	}
+    public void setSerialNumber(String serialNumber) {
+        this.serialNumber = serialNumber;
+    }
 
     public void setName(String name) {
         this.name = name;