diff --git a/src/java/org/apache/solr/search/FunctionRangeQParserPlugin.java b/src/java/org/apache/solr/search/FunctionRangeQParserPlugin.java
index 1fe2820dc67..5af50d1c8b6 100755
--- a/src/java/org/apache/solr/search/FunctionRangeQParserPlugin.java
+++ b/src/java/org/apache/solr/search/FunctionRangeQParserPlugin.java
@@ -33,6 +33,7 @@ import org.apache.solr.search.function.*;
  * <br><code>incl</code>, include the lower bound: true/false, optional, default=true
  * <br><code>incu</code>, include the upper bound: true/false, optional, default=true
  * <br>Example: <code>{!frange l=1000 u=50000}myfield</code>
+ * <br>Filter query example: <code>fq={!frange l=0 u=2.2}sum(user_ranking,editor_ranking)</code> 
  */
 public class FunctionRangeQParserPlugin extends QParserPlugin {
   public static String NAME = "frange";