diff --git a/panda/src/collide/collisionBox.cxx b/panda/src/collide/collisionBox.cxx
index 119284f905..a8af257456 100644
--- a/panda/src/collide/collisionBox.cxx
+++ b/panda/src/collide/collisionBox.cxx
@@ -16,6 +16,7 @@
 #include "collisionRay.h"
 #include "collisionSphere.h"
 #include "collisionSegment.h"
+#include "collisionTube.h"
 #include "collisionHandler.h"
 #include "collisionEntry.h"
 #include "config_collide.h"