diff --git a/lib/private/Files/Cache/Cache.php b/lib/private/Files/Cache/Cache.php
index 8fe413a02065a..1adc14c626cf9 100644
--- a/lib/private/Files/Cache/Cache.php
+++ b/lib/private/Files/Cache/Cache.php
@@ -681,7 +681,7 @@ public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
 			$targetPath = $this->normalize($targetPath);
 
 			$sourceData = $sourceCache->get($sourcePath);
-			if ($sourceData === false) {
+			if (!$sourceData) {
 				throw new \Exception('Invalid source storage path: ' . $sourcePath);
 			}