diff --git a/apps/files/js/files.js b/apps/files/js/files.js
index 6c5536aafa..e847550444 100644
--- a/apps/files/js/files.js
+++ b/apps/files/js/files.js
@@ -615,7 +615,7 @@ $(document).ready(function() {
 									tr.find('td.filename').attr('style','background-image:url('+path+')');
 								});
 							} else {
-								OC.dialogs.alert(result.data.message, 'Error');
+								OC.dialogs.alert(result.data.message, t('files', 'Error'));
 							}
 						}
 					);
@@ -631,7 +631,7 @@ $(document).ready(function() {
 								var tr=$('tr').filterAttr('data-file',name);
 								tr.attr('data-id', result.data.id);
 							} else {
-								OC.dialogs.alert(result.data.message, 'Error');
+								OC.dialogs.alert(result.data.message, t('files', 'Error'));
 							}
 						}
 					);
@@ -920,7 +920,7 @@ var folderDropOptions={
 						$('#notification').fadeIn();
 					}
 				} else {
-					OC.dialogs.alert(t('Error moving file'));
+					OC.dialogs.alert(t('Error moving file'), t('files', 'Error'));
 				}
 			});
 		});
@@ -958,7 +958,7 @@ var crumbDropOptions={
 						$('#notification').fadeIn();
 					}
 				} else {
-					OC.dialogs.alert(t('Error moving file'));
+					OC.dialogs.alert(t('Error moving file'), t('files', 'Error'));
 				}
 			});
 		});
diff --git a/apps/files_trashbin/js/trash.js b/apps/files_trashbin/js/trash.js
index 39e76e10c9..8bac2af60d 100644
--- a/apps/files_trashbin/js/trash.js
+++ b/apps/files_trashbin/js/trash.js
@@ -16,7 +16,7 @@ $(document).ready(function() {
 						row.parentNode.removeChild(row);
 					}
 					if (result.status != 'success') {
-						OC.dialogs.alert(result.data.message, 'Error');
+						OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
 					}
 				});
 
@@ -43,7 +43,7 @@ $(document).ready(function() {
 						row.parentNode.removeChild(row);
 					}
 					if (result.status != 'success') {
-						OC.dialogs.alert(result.data.message, 'Error');
+						OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
 					}
 				});
 
@@ -111,7 +111,7 @@ $(document).ready(function() {
 							row.parentNode.removeChild(row);
 						}
 						if (result.status != 'success') {
-							OC.dialogs.alert(result.data.message, 'Error');
+							OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
 						}
 					});
 			});
@@ -136,7 +136,7 @@ $(document).ready(function() {
 							row.parentNode.removeChild(row);
 						}
 						if (result.status != 'success') {
-							OC.dialogs.alert(result.data.message, 'Error');
+							OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
 						}
 					});
 			});
diff --git a/core/js/oc-vcategories.js b/core/js/oc-vcategories.js
index 3e75767c49..c745dbc5fb 100644
--- a/core/js/oc-vcategories.js
+++ b/core/js/oc-vcategories.js
@@ -11,7 +11,7 @@ var OCCategories= {
 			try {
 				var jsondata = jQuery.parseJSON(response);
 				if(response.status == 'error') {
-					OC.dialogs.alert(response.data.message, 'Error');
+					OC.dialogs.alert(response.data.message, t('core', 'Error'));
 					return;
 				}
 			} catch(e) {
@@ -77,7 +77,7 @@ var OCCategories= {
 		if(jsondata.status == 'success') {
 			OCCategories._update(jsondata.data.categories);
 		} else {
-			OC.dialogs.alert(jsondata.data.message, 'Error');
+			OC.dialogs.alert(jsondata.data.message, t('core', 'Error'));
 		}
 	},
 	favorites:function(type, cb) {
@@ -107,7 +107,7 @@ var OCCategories= {
 				cb(jsondata);
 			} else {
 				if(jsondata.status !== 'success') {
-					OC.dialogs.alert(jsondata.data.message, 'Error');
+					OC.dialogs.alert(jsondata.data.message, t('core', 'Error'));
 				}
 			}
 		});
@@ -169,7 +169,7 @@ var OCCategories= {
 				if(jsondata.status === 'success') {
 					OCCategories._update(jsondata.data.categories);
 				} else {
-					OC.dialogs.alert(jsondata.data.message, 'Error');
+					OC.dialogs.alert(jsondata.data.message, t('core', 'Error'));
 				}
 			}
 		});
@@ -186,7 +186,7 @@ var OCCategories= {
 				if(jsondata.status === 'success') {
 					OCCategories._update(jsondata.data.categories);
 				} else {
-					OC.dialogs.alert(jsondata.data.message, 'Error');
+					OC.dialogs.alert(jsondata.data.message, t('core', 'Error'));
 				}
 			}
 		}).error(function(xhr){
@@ -196,7 +196,7 @@ var OCCategories= {
 				if(typeof cb == 'function') {
 					cb({status:'error', data:{message:errormessage}});
 				} else {
-					OC.dialogs.alert(errormessage);
+					OC.dialogs.alert(errormessage, t('core', 'Error'));
 				}
 			}
 		});
diff --git a/settings/js/apps.js b/settings/js/apps.js
index dd20bc0a9c..49cf6cb675 100644
--- a/settings/js/apps.js
+++ b/settings/js/apps.js
@@ -56,7 +56,7 @@ OC.Settings.Apps = OC.Settings.Apps || {
 		if(active) {
 			$.post(OC.filePath('settings','ajax','disableapp.php'),{appid:appid},function(result) {
 				if(!result || result.status!='success') {
-					OC.dialogs.alert('Error while disabling app','Error');
+					OC.dialogs.alert('Error while disabling app', t('settings', 'Error'));
 				}
 				else {
 					element.data('active',false);
@@ -68,7 +68,7 @@ OC.Settings.Apps = OC.Settings.Apps || {
 		} else {
 			$.post(OC.filePath('settings','ajax','enableapp.php'),{appid:appid},function(result) {
 				if(!result || result.status!='success') {
-					OC.dialogs.alert('Error while enabling app','Error');
+					OC.dialogs.alert('Error while enabling app', t('settings', 'Error'));
 				}
 				else {
 					OC.Settings.Apps.addNavigation(appid);
@@ -77,7 +77,7 @@ OC.Settings.Apps = OC.Settings.Apps || {
 				}
 			},'json')
 			.fail(function() { 
-				OC.dialogs.alert('Error while enabling app','Error');
+				OC.dialogs.alert('Error while enabling app', t('settings', 'Error'));
 				element.data('active',false);
 				OC.Settings.Apps.removeNavigation(appid);
 				element.val(t('settings','Enable'));