diff --git a/direct/src/dcparser/dcSwitch.cxx b/direct/src/dcparser/dcSwitch.cxx
index 4282586f51..aa5b6205bf 100644
--- a/direct/src/dcparser/dcSwitch.cxx
+++ b/direct/src/dcparser/dcSwitch.cxx
@@ -21,6 +21,7 @@
 #include "dcParameter.h"
 #include "hashGenerator.h"
 #include "dcindent.h"
+#include "dcPacker.h"
 
 ////////////////////////////////////////////////////////////////////
 //     Function: DCSwitch::Constructor