diff --git a/rse/plugins/org.eclipse.rse.ui/UI/org/eclipse/rse/ui/SystemConnectionForm.java b/rse/plugins/org.eclipse.rse.ui/UI/org/eclipse/rse/ui/SystemConnectionForm.java
index 7a95b246105..118d14edf65 100644
--- a/rse/plugins/org.eclipse.rse.ui/UI/org/eclipse/rse/ui/SystemConnectionForm.java
+++ b/rse/plugins/org.eclipse.rse.ui/UI/org/eclipse/rse/ui/SystemConnectionForm.java
@@ -765,6 +765,7 @@ public class SystemConnectionForm
 			new ModifyListener() {
 				public void modifyText(ModifyEvent e) {
 					validateHostNameInput();
+					validateConnectionNameInput(false);
 				}
 			}
 		);