diff --git a/src/main/org/apache/tools/ant/Target.java b/src/main/org/apache/tools/ant/Target.java
index e121e36f9..35b40f8f7 100644
--- a/src/main/org/apache/tools/ant/Target.java
+++ b/src/main/org/apache/tools/ant/Target.java
@@ -529,7 +529,7 @@ public class Target implements TaskContainer {
         public boolean eval() throws BuildException {
             PropertyHelper propertyHelper = PropertyHelper.getPropertyHelper(getProject());
             Object o = propertyHelper.parseProperties(condition);
-            return propertyHelper.testUnlessCondition(o);
+            return !propertyHelper.testUnlessCondition(o);
         }
 
     }