diff --git a/core/src/main/java/hudson/Functions.java b/core/src/main/java/hudson/Functions.java
index a91f745324..ec51bc18f8 100644
--- a/core/src/main/java/hudson/Functions.java
+++ b/core/src/main/java/hudson/Functions.java
@@ -296,4 +296,9 @@ public class Functions {
         }
         return null;
     }
+
+    public static String appendSpaceIfNotNull(String n) {
+        if(n==null) return null;
+        else        return n+' ';
+    }
 }
diff --git a/core/src/main/resources/lib/hudson/buildLink.jelly b/core/src/main/resources/lib/hudson/buildLink.jelly
index 218eb1a0ca..4afb417987 100644
--- a/core/src/main/resources/lib/hudson/buildLink.jelly
+++ b/core/src/main/resources/lib/hudson/buildLink.jelly
@@ -6,7 +6,7 @@
 	<%@ attribute name="number" type="java.lang.Integer" required="true" %>
 -->
 <j:jelly xmlns:j="jelly:core" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
-  <j:set var="jobName_" value="${h.ifThenElse(jobName!=null,jobName+' ',null)}"/>
+  <j:set var="jobName_" value="${h.appendSpaceIfNotNull(jobName)}"/>
   <j:choose>
 	  <j:when test="${job==null}">
 	    ${jobName_}#<!-- -->${number}