diff --git a/library/iFixit/Matryoshka/Scope.php b/library/iFixit/Matryoshka/Scope.php
index bc46746..045d347 100644
--- a/library/iFixit/Matryoshka/Scope.php
+++ b/library/iFixit/Matryoshka/Scope.php
@@ -25,7 +25,7 @@ public function getScopePrefix(bool $reset = false) {
       if ($this->scopePrefix === null || $reset) {
          $scopeValue = $this->backend->getAndSet($this->getScopeKey(),
           function() {
-            return substr(md5(microtime() . $this->scopeName), 0, 8);
+            return substr(md5(microtime() . $this->scopeName), 0, 16);
          }, 0, $reset);
 
          $this->scopePrefix = "{$scopeValue}-";