diff --git a/sm.h b/sm.h
index 774cc00b95..5d19a5cc4f 100644
--- a/sm.h
+++ b/sm.h
@@ -14,12 +14,41 @@ License. See the file "COPYING" for the exact licensing terms.
 
 #include <X11/SM/SMlib.h>
 #include <kapplication.h>
+#include <netwm_def.h>
 
 class QSocketNotifier;
 
 namespace KWinInternal
 {
 
+struct SessionInfo
+    {
+    QCString sessionId;
+    QCString windowRole;
+    QCString wmCommand;
+    QCString wmClientMachine;
+    QCString resourceName;
+    QCString resourceClass;
+
+    QRect geometry;
+    QRect restore;
+    QRect fsrestore;
+    int maximized;
+    int fullscreen;
+    int desktop;
+    bool minimized;
+    bool onAllDesktops;
+    bool shaded;
+    bool keepAbove;
+    bool keepBelow;
+    bool skipTaskbar;
+    bool skipPager;
+    bool userNoBorder;
+    NET::WindowType windowType;
+    bool active; // means 'was active in the saved session', not used otherwise
+    };
+
+
 enum SMSavePhase
     {
     SMSavePhase0,     // saving global state in "phase 0"
diff --git a/workspace.h b/workspace.h
index 644d8abebd..fb2496a50c 100644
--- a/workspace.h
+++ b/workspace.h
@@ -61,34 +61,6 @@ class SystemTrayWindow
 
 typedef QValueList<SystemTrayWindow> SystemTrayWindowList;
 
-struct SessionInfo
-    {
-    QCString sessionId;
-    QCString windowRole;
-    QCString wmCommand;
-    QCString wmClientMachine;
-    QCString resourceName;
-    QCString resourceClass;
-
-    QRect geometry;
-    QRect restore;
-    QRect fsrestore;
-    int maximized;
-    int fullscreen;
-    int desktop;
-    bool minimized;
-    bool onAllDesktops;
-    bool shaded;
-    bool keepAbove;
-    bool keepBelow;
-    bool skipTaskbar;
-    bool skipPager;
-    bool userNoBorder;
-    NET::WindowType windowType;
-    bool active; // means 'was active in the saved session', not used otherwise
-    };
-
-
 class Workspace : public QObject, public KWinInterface, public KDecorationDefines
     {
     Q_OBJECT