diff --git a/webapp/src/edu/cornell/mannlib/vitro/webapp/web/templatemodels/BaseTemplateModel.java b/webapp/src/edu/cornell/mannlib/vitro/webapp/web/templatemodels/BaseTemplateModel.java
index 2ade9e81d..ebd2aed21 100644
--- a/webapp/src/edu/cornell/mannlib/vitro/webapp/web/templatemodels/BaseTemplateModel.java
+++ b/webapp/src/edu/cornell/mannlib/vitro/webapp/web/templatemodels/BaseTemplateModel.java
@@ -18,7 +18,7 @@ public abstract class BaseTemplateModel {
     private static final Log log = LogFactory.getLog(BaseTemplateModel.class);
 
 	private static final String URI_CHARACTERS = 
-			"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&'()*+,;=";
+			"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~:/?#[]@!$&%'()*+,;=";
     
     protected static ServletContext servletContext;