diff --git a/panda/src/pgraph/nodePath.cxx b/panda/src/pgraph/nodePath.cxx
index 6bebd2cce3..1159a5d1d1 100644
--- a/panda/src/pgraph/nodePath.cxx
+++ b/panda/src/pgraph/nodePath.cxx
@@ -71,6 +71,7 @@
 #include "modelNode.h"
 #include "py_panda.h"
 #include "bam.h"
+#include "bamWriter.h"
 
 // stack seems to overflow on Intel C++ at 7000.  If we need more than 
 // 7000, need to increase stack size.