diff --git a/src/Context/RestContext.php b/src/Context/RestContext.php
index a3173a7a..dd1d21f8 100644
--- a/src/Context/RestContext.php
+++ b/src/Context/RestContext.php
@@ -54,12 +54,10 @@ public function iSendARequestToWithParameters($method, $url, TableNode $data)
                 $files[$row['key']] = rtrim($this->getMinkParameter('files_path'), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR.substr($row['value'],1);
             }
             else {
-                $parameters[] = sprintf('%s=%s', $row['key'], $row['value']);
+                $parameters[$row['key']] = $row['value'];
             }
         }
 
-        parse_str(implode('&', $parameters), $parameters);
-
         return $this->request->send(
             $method,
             $this->locatePath($url),
diff --git a/tests/features/rest.feature b/tests/features/rest.feature
index d113be26..39d79538 100644
--- a/tests/features/rest.feature
+++ b/tests/features/rest.feature
@@ -51,6 +51,13 @@ Feature: Testing RESTContext
             """
         Then the response should be empty
 
+    Scenario: request parameter with dot
+        https://github.com/Behatch/contexts/issues/256
+        When I send a POST request to "/rest/index.php" with parameters:
+            | key     | value |
+            | item.id | 1     |
+        Then I should see "item.id=1"
+
     Scenario: Add header
         Given I add "xxx" header equal to "yyy"
         When I send a GET request to "/rest/index.php"