diff --git a/apps/files/ajax/move.php b/apps/files/ajax/move.php
index 78ed218c13623571cb41c6ce448e7c72a1617f4a..93063e52eb09ae017617bcce6e6b76d1d54e57a6 100644
--- a/apps/files/ajax/move.php
+++ b/apps/files/ajax/move.php
@@ -11,8 +11,10 @@ $dir = stripslashes($_POST["dir"]);
 $file = stripslashes($_POST["file"]);
 $target = stripslashes(rawurldecode($_POST["target"]));
 
+$l = OC_L10N::get('files');
+
 if(\OC\Files\Filesystem::file_exists($target . '/' . $file)) {
-	OCP\JSON::error(array("data" => array( "message" => "Could not move $file - File with this name already exists" )));
+	OCP\JSON::error(array("data" => array( "message" => $l->t("Could not move %s - File with this name already exists", array($file)) )));
 	exit;
 }
 
@@ -22,8 +24,8 @@ if ($dir != '' || $file != 'Shared') {
 	if(\OC\Files\Filesystem::rename($sourceFile, $targetFile)) {
 		OCP\JSON::success(array("data" => array( "dir" => $dir, "files" => $file )));
 	} else {
-		OCP\JSON::error(array("data" => array( "message" => "Could not move $file" )));
+		OCP\JSON::error(array("data" => array( "message" => $l->t("Could not move %s", array($file)) )));
 	}
 }else{
-	OCP\JSON::error(array("data" => array( "message" => "Could not move $file" )));
+	OCP\JSON::error(array("data" => array( "message" => $l->t("Could not move %s", array($file)) )));
 }
diff --git a/apps/files/ajax/rename.php b/apps/files/ajax/rename.php
index 970aaa638da89a578f11b381220adeae2ea1d889..9fd2ce3ad4bc6d548aeb3a609e45863707ea7df7 100644
--- a/apps/files/ajax/rename.php
+++ b/apps/files/ajax/rename.php
@@ -11,14 +11,16 @@ $dir = stripslashes($_GET["dir"]);
 $file = stripslashes($_GET["file"]);
 $newname = stripslashes($_GET["newname"]);
 
+$l = OC_L10N::get('files');
+
 if ( $newname !== '.' and ($dir != '' || $file != 'Shared') and $newname !== '.') {
 	$targetFile = \OC\Files\Filesystem::normalizePath($dir . '/' . $newname);
 	$sourceFile = \OC\Files\Filesystem::normalizePath($dir . '/' . $file);
 	if(\OC\Files\Filesystem::rename($sourceFile, $targetFile)) {
 		OCP\JSON::success(array("data" => array( "dir" => $dir, "file" => $file, "newname" => $newname )));
 	} else {
-		OCP\JSON::error(array("data" => array( "message" => "Unable to rename file" )));
+		OCP\JSON::error(array("data" => array( "message" => $l->t("Unable to rename file") )));
 	}
 }else{
-	OCP\JSON::error(array("data" => array( "message" => "Unable to rename file" )));
+	OCP\JSON::error(array("data" => array( "message" => $l->t("Unable to rename file") )));
 }
diff --git a/apps/files/ajax/upload.php b/apps/files/ajax/upload.php
index 676612c0e42e7f55f45d2d1f6784afbcf5b5ed68..07977f5ddf1ddb04972bd027b903429889dc04db 100644
--- a/apps/files/ajax/upload.php
+++ b/apps/files/ajax/upload.php
@@ -49,7 +49,7 @@ foreach ($files['size'] as $size) {
 	$totalSize += $size;
 }
 if ($totalSize > \OC\Files\Filesystem::free_space($dir)) {
-	OCP\JSON::error(array('data' => array('message' => $l->t('Not enough space available'),
+	OCP\JSON::error(array('data' => array('message' => $l->t('Not enough storage available'),
 		'uploadMaxFilesize' => $maxUploadFilesize,
 		'maxHumanFilesize' => $maxHumanFilesize)));
 	exit();