diff --git a/poi-scratchpad/src/test/java/org/apache/poi/hslf/usermodel/TestBugs.java b/poi-scratchpad/src/test/java/org/apache/poi/hslf/usermodel/TestBugs.java
index 6e8c8b5e92..a2b0df9bf7 100644
--- a/poi-scratchpad/src/test/java/org/apache/poi/hslf/usermodel/TestBugs.java
+++ b/poi-scratchpad/src/test/java/org/apache/poi/hslf/usermodel/TestBugs.java
@@ -877,4 +877,12 @@ public final class TestBugs {
             assertEquals(ShapeType.NOT_PRIMITIVE, shList.get(2).getShapeType());
         }
     }
+
+    @Test
+    void test501RC1Failure() throws Exception {
+        try (HSLFSlideShow ppt = open("23884_defense_FINAL_OOimport_edit.ppt")) {
+            List<HSLFShape> shList = ppt.getSlides().get(0).getShapes();
+            assertEquals(ShapeType.NOT_PRIMITIVE, shList.get(2).getShapeType());
+        }
+    }
 }
diff --git a/test-data/slideshow/23884_defense_FINAL_OOimport_edit.ppt b/test-data/slideshow/23884_defense_FINAL_OOimport_edit.ppt
new file mode 100644
index 0000000000..782ad93386
Binary files /dev/null and b/test-data/slideshow/23884_defense_FINAL_OOimport_edit.ppt differ