diff --git a/src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java b/src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java
index 4224317f4..1c41db0d1 100644
--- a/src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java
+++ b/src/ooxml/testcases/org/apache/poi/openxml4j/opc/TestPackage.java
@@ -470,7 +470,8 @@ public final class TestPackage extends TestCase {
             p.save(tempFile);
             fail("You shouldn't be able to call save(File) to overwrite the current file");
         } catch(InvalidOperationException e) {}
-        
+
+        p.close();
         // Delete it
         assertTrue(tempFile.delete());