diff --git a/src/main/org/apache/tools/ant/taskdefs/WhichResource.java b/src/main/org/apache/tools/ant/taskdefs/WhichResource.java
index cf36813d3..8f4393731 100644
--- a/src/main/org/apache/tools/ant/taskdefs/WhichResource.java
+++ b/src/main/org/apache/tools/ant/taskdefs/WhichResource.java
@@ -110,7 +110,7 @@ public class WhichResource extends Task {
 
     /**
      * execute it
-     * @throws BuildException
+     * @throws BuildException on error
      */
     public void execute() throws BuildException {
         validate();