diff --git a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
index e01317f9f..a62b17800 100644
--- a/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
+++ b/plugins/org.eclipse.xtext/src/org/eclipse/xtext/xtext/XtextValidator.java
@@ -421,6 +421,7 @@ public class XtextValidator extends AbstractDeclarativeValidator {
 							nsURI);
 					return;
 				}
+				return;
 			}
 		}
 		checkExternalPackage(metamodel, text);