diff --git a/src/main/org/apache/tools/ant/taskdefs/Javadoc.java b/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
index 97c357d67..7e8ab55b4 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Javadoc.java
@@ -905,7 +905,7 @@ public class Javadoc extends Task {
     			}
     		});
     
-    	if (foundJavaFile) {
+    	if (foundJavaFile && vpath.length() > 0) {
     		String newPkg = vpath.substring(1).replace(File.separatorChar, '.');
     		if (!pkgs.contains(newPkg)) {
     			pkgs.addElement(newPkg);