diff --git a/src/groups.js b/src/groups.js
index 046ff6789..8bea55dd8 100644
--- a/src/groups.js
+++ b/src/groups.js
@@ -64,11 +64,8 @@ function validateGroupname(name) {
 
     if (constants.RESERVED_NAMES.indexOf(name) !== -1) return new GroupsError(GroupsError.BAD_FIELD, 'name is reserved');
 
-    // +/- can be tricky in emails. also need to consider valid LDAP characters here (e.g '+' is reserved)
-    if (/[^a-zA-Z0-9.]/.test(name)) return new GroupsError(GroupsError.BAD_FIELD, 'name can only contain alphanumerals and dot');
-
-    // app emails are sent using the .app suffix
-    if (name.indexOf('.app') !== -1) return new GroupsError(GroupsError.BAD_FIELD, 'name pattern is reserved for apps');
+    // need to consider valid LDAP characters here (e.g '+' is reserved)
+    if (/[^a-zA-Z0-9.-]/.test(name)) return new GroupsError(GroupsError.BAD_FIELD, 'name can only contain alphanumerals, hyphen and dot');
 
     return null;
 }
diff --git a/src/test/groups-test.js b/src/test/groups-test.js
index 1735e9ea6..0eceb8dd3 100644
--- a/src/test/groups-test.js
+++ b/src/test/groups-test.js
@@ -108,7 +108,7 @@ describe('Groups', function () {
     });
 
     it('cannot create group - invalid', function (done) {
-        groups.create('cloudron-admin', function (error) {
+        groups.create('cloudron+admin', function (error) {
             expect(error.reason).to.be(GroupsError.BAD_FIELD);
             done();
         });
@@ -124,7 +124,7 @@ describe('Groups', function () {
 
     it('cannot create existing group with mixed case', function (done) {
         var name = GROUP0_NAME[0].toUpperCase() + GROUP0_NAME.substr(1);
-        groups.create(name, function (error, result) {
+        groups.create(name, function (error) {
             expect(error.reason).to.be(GroupsError.ALREADY_EXISTS);
             done();
         });