diff --git a/lib/private/Files/Storage/Wrapper/Encryption.php b/lib/private/Files/Storage/Wrapper/Encryption.php
index 308952c2a31b6..3ee715ae3d32a 100644
--- a/lib/private/Files/Storage/Wrapper/Encryption.php
+++ b/lib/private/Files/Storage/Wrapper/Encryption.php
@@ -784,8 +784,12 @@ private function copyBetweenStorage(Storage\IStorage $sourceStorage, $sourceInte
 				fclose($source);
 				fclose($target);
 			} catch (\Exception $e) {
-				fclose($source);
-				fclose($target);
+				if (is_resource($source)) {
+					fclose($source);
+				}
+				if (is_resource($target)) {
+					fclose($target);
+				}
 				throw $e;
 			}
 			if ($result) {