diff --git a/hsarback/src/de/hsadmin/mods/dom/DomainModuleImpl.java b/hsarback/src/de/hsadmin/mods/dom/DomainModuleImpl.java
index 550e6d2..f0dc96c 100644
--- a/hsarback/src/de/hsadmin/mods/dom/DomainModuleImpl.java
+++ b/hsarback/src/de/hsadmin/mods/dom/DomainModuleImpl.java
@@ -109,7 +109,7 @@ public class DomainModuleImpl extends AbstractModuleImpl {
 				if (resultList.size() > 0) {
 					Domain superDom = (Domain) resultList.get(0);
 					if (superDom.isPacDomain()) {
-						throw new HSAdminException("subdomains to pacdomain " + superDom.getName() + " is not allowed");
+						throw new HSAdminException("subdomains to pacdomain " + superDom.getName() + " are not allowed");
 					}
 					if (loginUser.hasPacAdminRoleFor(superDom.getUser().getPac())) {
 						break;	// same pac