diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d01d354e2..64af28d09a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 1. [](#new)
     * Added `Uri::method()` to get current HTTP method (GET/POST etc)
     * `FormatterInterface`: Added `getSupportedFileExtensions()` and `getDefaultFileExtension()` methods
+    * Added option to disable `SimpleCache` key validation    
 1. [](#improved)
     * Improved `Utils::url()` to support query strings
 1. [](#bugfix)
diff --git a/system/src/Grav/Framework/Cache/CacheTrait.php b/system/src/Grav/Framework/Cache/CacheTrait.php
index 65f4d8d40b..2f2b178baa 100644
--- a/system/src/Grav/Framework/Cache/CacheTrait.php
+++ b/system/src/Grav/Framework/Cache/CacheTrait.php
@@ -16,21 +16,18 @@
  */
 trait CacheTrait
 {
-    /**
-     * @var string
-     */
+    /** @var string */
     private $namespace = '';
 
-    /**
-     * @var int|null
-     */
+    /** @var int|null */
     private $defaultLifetime = null;
 
-    /**
-     * @var \stdClass
-     */
+    /** @var \stdClass */
     private $miss;
 
+    /** @var bool */
+    private $validation = true;
+
     /**
      * Always call from constructor.
      *
@@ -45,6 +42,14 @@ protected function init($namespace = '', $defaultLifetime = null)
         $this->miss = new \stdClass;
     }
 
+    /**
+     * @param $validation
+     */
+    public function setValidation($validation)
+    {
+        $this->validation = (bool) $validation;
+    }
+
     /**
      * @return string
      */
@@ -307,6 +312,10 @@ protected function validateKey($key)
      */
     protected function validateKeys($keys)
     {
+        if (!$this->validation) {
+            return;
+        }
+
         foreach ($keys as $key) {
             $this->validateKey($key);
         }