diff --git a/events.cpp b/events.cpp
index d3a0f3a24f..e964f2ab78 100644
--- a/events.cpp
+++ b/events.cpp
@@ -1014,7 +1014,7 @@ void Client::updateMouseGrab()
             grabButton(XCB_NONE);
         return;
     }
-    if (isActive() && !workspace()->forcedGlobalMouseGrab()) { // see Workspace::establishTabBoxGrab()
+    if (isActive() && !TabBox::TabBox::self()->forcedGlobalMouseGrab()) { // see TabBox::establishTabBoxGrab()
         // first grab all modifier combinations
         m_wrapper.grabButton(XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC);
         // remove the grab for no modifiers only if the window
diff --git a/tabbox/tabbox.h b/tabbox/tabbox.h
index 90418f4ee0..c104c397a3 100644
--- a/tabbox/tabbox.h
+++ b/tabbox/tabbox.h
@@ -176,6 +176,10 @@ public:
     void keyPress(int key);
     void keyRelease(const xcb_key_release_event_t *ev);
 
+    bool forcedGlobalMouseGrab() const {
+        return m_forcedGlobalMouseGrab;
+    }
+
     static TabBox *self();
     static TabBox *create(QObject *parent);
 
diff --git a/workspace.cpp b/workspace.cpp
index 200edb5079..9e9fdbf0a1 100644
--- a/workspace.cpp
+++ b/workspace.cpp
@@ -132,7 +132,6 @@ Workspace::Workspace(bool restore)
     , startup(0)
     , set_active_client_recursion(0)
     , block_stacking_updates(0)
-    , forced_global_mouse_grab(false)
 {
     // If KWin was already running it saved its configuration after loosing the selection -> Reread
     QFuture<void> reparseConfigFuture = QtConcurrent::run(options, &Options::reparseConfiguration);
diff --git a/workspace.h b/workspace.h
index 71c328e4f4..6c76006a3e 100644
--- a/workspace.h
+++ b/workspace.h
@@ -297,7 +297,6 @@ public:
 
     void focusToNull(); // SELI TODO: Public?
 
-    bool forcedGlobalMouseGrab() const;
     void clientShortcutUpdated(Client* c);
     bool shortcutAvailable(const QKeySequence &cut, Client* ignore = NULL) const;
     bool globalShortcutsDisabled() const;
@@ -570,7 +569,6 @@ private:
     int block_stacking_updates; // When > 0, stacking updates are temporarily disabled
     bool blocked_propagating_new_clients; // Propagate also new clients after enabling stacking updates?
     QScopedPointer<Xcb::Window> m_nullFocus;
-    bool forced_global_mouse_grab;
     friend class StackingUpdatesBlocker;
 
     QScopedPointer<KillWindow> m_windowKiller;
@@ -666,11 +664,6 @@ inline bool Workspace::sessionSaving() const
     return session_saving;
 }
 
-inline bool Workspace::forcedGlobalMouseGrab() const
-{
-    return forced_global_mouse_grab;
-}
-
 inline bool Workspace::showingDesktop() const
 {
     return showing_desktop;