diff --git a/panda/src/express/pStatCollectorForwardBase.h b/panda/src/express/pStatCollectorForwardBase.h
index e3675996bd..b649aa65f5 100644
--- a/panda/src/express/pStatCollectorForwardBase.h
+++ b/panda/src/express/pStatCollectorForwardBase.h
@@ -32,7 +32,7 @@
 //               This is subclassed as PStatCollectorForward, which
 //               defines the actual functionality.
 ////////////////////////////////////////////////////////////////////
-class PStatCollectorForwardBase : public ReferenceCount {
+class EXPCL_PANDAEXPRESS PStatCollectorForwardBase : public ReferenceCount {
 PUBLISHED:
 #ifdef DO_PSTATS
   virtual ~PStatCollectorForwardBase();
diff --git a/panda/src/pstatclient/pStatCollectorForward.h b/panda/src/pstatclient/pStatCollectorForward.h
index 8597bff3e2..6d5c31422a 100644
--- a/panda/src/pstatclient/pStatCollectorForward.h
+++ b/panda/src/pstatclient/pStatCollectorForward.h
@@ -30,7 +30,7 @@
 //               before the pstats module may access the
 //               PStatCollector.
 ////////////////////////////////////////////////////////////////////
-class PStatCollectorForward : public PStatCollectorForwardBase {
+class EXPCL_PANDA PStatCollectorForward : public PStatCollectorForwardBase {
 PUBLISHED:
   INLINE PStatCollectorForward(const PStatCollector &col);