diff --git a/src/main/org/apache/tools/ant/taskdefs/Execute.java b/src/main/org/apache/tools/ant/taskdefs/Execute.java
index a41ce849b..bb4b66cf0 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Execute.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Execute.java
@@ -498,6 +498,7 @@ public class Execute {
                 watchdog.stop();
             }
             streamHandler.stop();
+            closeStreams(process);
 
             if (watchdog != null) {
                 watchdog.checkException();