diff --git a/webapp/src/edu/cornell/mannlib/vitro/webapp/servlet/setup/UpdateKnowledgeBase.java b/webapp/src/edu/cornell/mannlib/vitro/webapp/servlet/setup/UpdateKnowledgeBase.java
index 76b2718d5..69377645b 100644
--- a/webapp/src/edu/cornell/mannlib/vitro/webapp/servlet/setup/UpdateKnowledgeBase.java
+++ b/webapp/src/edu/cornell/mannlib/vitro/webapp/servlet/setup/UpdateKnowledgeBase.java
@@ -146,7 +146,7 @@ public class UpdateKnowledgeBase implements ServletContextListener {
 		    					subj, replacement.getPredicate(), replacement.getObject());
 		    		}
 		    	} finally {
-		    		
+		    		applicationMetadataModel.leaveCriticalSection();
 		    	}
 		    }
 		} catch (Exception e) {