diff --git a/direct/src/interval/cInterval.cxx b/direct/src/interval/cInterval.cxx
index c4e201abac..e00d44517d 100644
--- a/direct/src/interval/cInterval.cxx
+++ b/direct/src/interval/cInterval.cxx
@@ -53,6 +53,25 @@ CInterval(const string &name, double duration, bool open_ended) :
   _play_rate = 1.0;
   _do_loop = false;
   _loop_count = 0;
+
+  if (interval_cat.is_spam()) {
+    interval_cat.spam()
+      << "Constructing interval " << (void *)this << ", duration = "
+      << _duration << "\n";
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: CInterval::Destructor
+//       Access: Public, Virtual
+//  Description: 
+////////////////////////////////////////////////////////////////////
+CInterval::
+~CInterval() {
+  if (interval_cat.is_spam()) {
+    interval_cat.spam()
+      << "Destructing interval " << (void *)this << "\n";
+  }
 }
 
 ////////////////////////////////////////////////////////////////////
diff --git a/direct/src/interval/cInterval.h b/direct/src/interval/cInterval.h
index 90508e8945..362a9e8316 100644
--- a/direct/src/interval/cInterval.h
+++ b/direct/src/interval/cInterval.h
@@ -42,6 +42,7 @@ class CIntervalManager;
 class EXPCL_DIRECT CInterval : public TypedReferenceCount {
 public:
   CInterval(const string &name, double duration, bool open_ended);
+  virtual ~CInterval();
 
 PUBLISHED:
   INLINE const string &get_name() const;