diff --git a/system/Cache/Handlers/RedisHandler.php b/system/Cache/Handlers/RedisHandler.php
index 9e1003d10ac2..529932bfca10 100644
--- a/system/Cache/Handlers/RedisHandler.php
+++ b/system/Cache/Handlers/RedisHandler.php
@@ -180,7 +180,7 @@ public function deleteMatching(string $pattern)
 
         do {
             // Scan for some keys
-            $keys = $this->redis->scan($iterator, $pattern);
+            $keys = $this->redis->scan($iterator, $this->prefix.$pattern);
 
             // Redis may return empty results, so protect against that
             if ($keys !== false) {