diff --git a/reference/yar/examples.xml b/reference/yar/examples.xml
index 10b547d868..242267ab69 100644
--- a/reference/yar/examples.xml
+++ b/reference/yar/examples.xml
@@ -13,37 +13,37 @@
 
 class Operator {
 
-	/**
-	 * Add two operands
-	 * @param interge 
-	 * @return interge
-	 */
-	public function add($a, $b) {
-		return $this->_add($a, $b);
-	}
+    /**
+     * Add two operands
+     * @param interge 
+     * @return interge
+     */
+    public function add($a, $b) {
+        return $this->_add($a, $b);
+    }
 
-	/**
-	 * Sub 
-	 */
-	public function sub($a, $b) {
-		return $a - $b;
-	}
+    /**
+     * Sub 
+     */
+    public function sub($a, $b) {
+        return $a - $b;
+    }
 
-	/**
-	 * Mul
-	 */
-	public function mul($a, $b) {
-		return $a * $b;
-	}
+    /**
+     * Mul
+     */
+    public function mul($a, $b) {
+        return $a * $b;
+    }
 
-	/**
-	 * Protected methods will not be exposed
-	 * @param interge 
-	 * @return interge
-	 */
-	protected function _add($a, $b) {
-		return $a + $b;
-	}
+    /**
+     * Protected methods will not be exposed
+     * @param interge 
+     * @return interge
+     */
+    protected function _add($a, $b) {
+        return $a + $b;
+    }
 }
 
 $server = new Yar_Server(new Operator());