diff --git a/src/Codeception/Module/REST.php b/src/Codeception/Module/REST.php
index 42f87fc..68d335c 100644
--- a/src/Codeception/Module/REST.php
+++ b/src/Codeception/Module/REST.php
@@ -168,7 +168,7 @@ protected function getRunningClient()
     }
 
     /**
-     * Sets a HTTP header to be used for all subsequent requests. Use [`deleteHeader`](#deleteHeader) to unset it.
+     * Sets a HTTP header to be used for all subsequent requests. Use [`unsetHttpHeader`](#unsetHttpHeader) to unset it.
      *
      * ```php
      * <?php
@@ -188,7 +188,7 @@ public function haveHttpHeader($name, $value)
     }
 
     /**
-     * Deletes a HTTP header (that was originally added by [haveHttpHeader()](#haveHttpHeader)),
+     * Unsets a HTTP header (that was originally added by [haveHttpHeader()](#haveHttpHeader)),
      * so that subsequent requests will not send it anymore.
      *
      * Example:
@@ -198,18 +198,25 @@ public function haveHttpHeader($name, $value)
      * $I->sendGET('test-headers.php');
      * // ...
      * $I->deleteHeader('X-Requested-With');
-     * $I->sendPOST('some-other-page.php');
-     * ?>
+     * $I->sendPost('some-other-page.php');
      * ```
      *
-     * @param string $name the name of the header to delete.
+     * @param string $name the name of the header to unset.
      * @part json
      * @part xml
      */
-    public function deleteHeader($name)
+    public function deleteHeader(string $name): void
     {
         $this->connectionModule->deleteHeader($name);
     }
+    
+    /**
+     * @deprecated Use [unsetHttpHeader](#unsetHttpHeader) instead
+     */
+    public function deleteHeader($name)
+    {
+        $this->unsetHttpHeader($name);
+    }
 
     /**
      * Checks over the given HTTP header and (optionally)