diff --git a/panda/src/collide/collisionCapsule.h b/panda/src/collide/collisionCapsule.h
index af5cbcc92d..b6d375ff44 100644
--- a/panda/src/collide/collisionCapsule.h
+++ b/panda/src/collide/collisionCapsule.h
@@ -156,13 +156,6 @@ private:
   friend class CollisionBox;
 };
 
-BEGIN_PUBLISH
-/**
- * Alias for backward compatibility.
- */
-typedef CollisionCapsule CollisionTube;
-END_PUBLISH
-
 #include "collisionCapsule.I"
 
 #endif
diff --git a/panda/src/collide/collisionTube.h b/panda/src/collide/collisionTube.h
new file mode 100644
index 0000000000..c67708628e
--- /dev/null
+++ b/panda/src/collide/collisionTube.h
@@ -0,0 +1,27 @@
+/**
+ * PANDA 3D SOFTWARE
+ * Copyright (c) Carnegie Mellon University.  All rights reserved.
+ *
+ * All use of this software is subject to the terms of the revised BSD
+ * license.  You should have received a copy of this license along
+ * with this source code in a file named "LICENSE."
+ *
+ * @file collisionTube.h
+ * @author rdb
+ * @date 2018-12-23
+ */
+
+#ifndef COLLISIONTUBE_H
+#define COLLISIONTUBE_H
+
+#include "collisionCapsule.h"
+
+BEGIN_PUBLISH
+/**
+ * Alias for backward compatibility.
+ * @deprecated use CollisionCapsule instead.
+ */
+typedef CollisionCapsule CollisionTube;
+END_PUBLISH
+
+#endif