diff --git a/src/main/org/apache/tools/ant/types/resources/AbstractClasspathResource.java b/src/main/org/apache/tools/ant/types/resources/AbstractClasspathResource.java
index 6b2548b5e..eb01eaed1 100644
--- a/src/main/org/apache/tools/ant/types/resources/AbstractClasspathResource.java
+++ b/src/main/org/apache/tools/ant/types/resources/AbstractClasspathResource.java
@@ -188,7 +188,7 @@ public abstract class AbstractClasspathResource extends Resource {
                                                           getProject(),
                                                           p, false);
                 }
-                clNeedsCleanup = loader != null;
+                clNeedsCleanup = loader == null;
             } else {
                 cl = JavaResource.class.getClassLoader();
             }