diff --git a/src/include/v3270/actions.h b/src/include/v3270/actions.h
index 56df7f9..cfba739 100644
--- a/src/include/v3270/actions.h
+++ b/src/include/v3270/actions.h
@@ -224,16 +224,16 @@
 	GType V3270SimpleAction_get_type(void) G_GNUC_CONST;
 
 	/// @brief Create an empty simple action.
-	V3270SimpleAction * v3270_simple_action_new();
+	LIB3270_EXPORT V3270SimpleAction * v3270_simple_action_new();
 
 	/// @brief Create a dialog action.
-	V3270SimpleAction * v3270_dialog_action_new(GtkWidget * (*factory)(V3270SimpleAction *, GtkWidget *));
+	LIB3270_EXPORT V3270SimpleAction * v3270_dialog_action_new(GtkWidget * (*factory)(V3270SimpleAction *, GtkWidget *));
 
 	/// @brief Create an action from property name.
-	V3270SimpleAction * v3270_property_action_new(GtkWidget *widget, const gchar *property_name);
+	LIB3270_EXPORT V3270SimpleAction * v3270_property_action_new(GtkWidget *widget, const gchar *property_name);
 
 	/// @brief Create an action with the "enable" property binded with terminal property.
-	V3270SimpleAction * v3270_conditional_action_new(GtkWidget *widget, const gchar *property_name);
+	LIB3270_EXPORT V3270SimpleAction * v3270_conditional_action_new(GtkWidget *widget, const gchar *property_name);
 
 	G_END_DECLS
 
--
libgit2 0.21.2