diff --git a/libpyside/dynamicqmetaobject.cpp b/libpyside/dynamicqmetaobject.cpp
index 0622bcb..3454932 100644
--- a/libpyside/dynamicqmetaobject.cpp
+++ b/libpyside/dynamicqmetaobject.cpp
@@ -26,6 +26,7 @@
 #include "pysidesignal_p.h"
 #include "pysideproperty.h"
 #include "pysideproperty_p.h"
+#include "pysideslot_p.h"
 
 #include <QByteArray>
 #include <QString>
diff --git a/libpyside/dynamicqmetaobject_p.h b/libpyside/dynamicqmetaobject_p.h
index d31e908..c8c45a1 100644
--- a/libpyside/dynamicqmetaobject_p.h
+++ b/libpyside/dynamicqmetaobject_p.h
@@ -26,7 +26,6 @@
 #include <Python.h>
 #include <QByteArray>
 
-#define PYSIDE_SLOT_LIST_ATTR "_slots"
 #define GLOBAL_RECEIVER_CLASS_NAME "__GlobalReceiver__"
 
 struct PySideProperty;
diff --git a/libpyside/pysideslot.cpp b/libpyside/pysideslot.cpp
index acd0bb9..7d22ca9 100644
--- a/libpyside/pysideslot.cpp
+++ b/libpyside/pysideslot.cpp
@@ -22,6 +22,7 @@
 
 #include "dynamicqmetaobject_p.h"
 #include "pysidesignal_p.h"
+#include "pysideslot_p.h"
 
 #include <shiboken.h>
 #include <QString>
diff --git a/libpyside/pysideslot_p.h b/libpyside/pysideslot_p.h
index b02c36a..1e863d2 100644
--- a/libpyside/pysideslot_p.h
+++ b/libpyside/pysideslot_p.h
@@ -23,6 +23,7 @@
 #define PYSIDE_SLOT_P_H
 
 #include <Python.h>
+#define PYSIDE_SLOT_LIST_ATTR "_slots"
 
 namespace PySide { namespace Slot {
     void init(PyObject* module);