diff --git a/thumbnail/thumbnail.go b/thumbnail/thumbnail.go
index 9de29c9..b49ebca 100644
--- a/thumbnail/thumbnail.go
+++ b/thumbnail/thumbnail.go
@@ -125,6 +125,7 @@ func GetThumbnail(c *fiber.Ctx, completePath string) {
 	thumbnailCacheMutex.RUnlock()
 	if ok {
 		c.Write(bytesThumb)
+		Free()
 		return
 	}