diff --git a/panda/src/gui/guiButton.h b/panda/src/gui/guiButton.h
index fee0d51856..8377a7d1c6 100644
--- a/panda/src/gui/guiButton.h
+++ b/panda/src/gui/guiButton.h
@@ -12,7 +12,7 @@
 
 #include <eventHandler.h>
 
-class GuiButton : public Namable {
+class EXPCL_PANDA GuiButton : public Namable {
 private:
   GuiLabel* _up;
   GuiLabel* _up_rollover;
diff --git a/panda/src/gui/guiLabel.h b/panda/src/gui/guiLabel.h
index b51dde148a..f0deeb3a6d 100644
--- a/panda/src/gui/guiLabel.h
+++ b/panda/src/gui/guiLabel.h
@@ -17,7 +17,7 @@
 
 class GuiManager;
 
-class GuiLabel {
+class EXPCL_PANDA GuiLabel {
 private:
   enum LabelType { NONE, SIMPLE_TEXTURE, SIMPLE_TEXT };
   LabelType _type;
diff --git a/panda/src/gui/guiManager.h b/panda/src/gui/guiManager.h
index f32a4f5d6f..3fa90d8fef 100644
--- a/panda/src/gui/guiManager.h
+++ b/panda/src/gui/guiManager.h
@@ -17,7 +17,7 @@
 #include "guiLabel.h"
 #include "config_gui.h"
 
-class GuiManager {
+class EXPCL_PANDA GuiManager {
 private:
   typedef map<GraphicsWindow*, GuiManager*> GuiMap;
   static GuiMap* _map;
diff --git a/panda/src/gui/guiRegion.h b/panda/src/gui/guiRegion.h
index 751375c20e..8a3146e434 100644
--- a/panda/src/gui/guiRegion.h
+++ b/panda/src/gui/guiRegion.h
@@ -14,7 +14,7 @@
 
 class GuiManager;
 
-class GuiRegion : public Namable {
+class EXPCL_PANDA GuiRegion : public Namable {
 private:
   float _left, _right, _bottom, _top;
   PT(MouseWatcherRegion) _region;
diff --git a/panda/src/gui/guiRollover.h b/panda/src/gui/guiRollover.h
index 5fa61a924b..973f094058 100644
--- a/panda/src/gui/guiRollover.h
+++ b/panda/src/gui/guiRollover.h
@@ -12,7 +12,7 @@
 
 #include <eventHandler.h>
 
-class GuiRollover : public Namable {
+class EXPCL_PANDA GuiRollover : public Namable {
 private:
   GuiLabel* _off;
   GuiLabel* _on;