diff --git a/abstract_client.h b/abstract_client.h
index 9cad327e83..7e9bf99da5 100644
--- a/abstract_client.h
+++ b/abstract_client.h
@@ -345,7 +345,7 @@ public:
     virtual const WindowRules* rules() const = 0;
     virtual void takeFocus() = 0;
     virtual bool wantsInput() const = 0;
-    virtual void checkWorkspacePosition(QRect oldGeometry = QRect(), int oldDesktop = -2,  QRect oldClientGeometry = QRect()) = 0;
+    void checkWorkspacePosition(QRect oldGeometry = QRect(), int oldDesktop = -2,  QRect oldClientGeometry = QRect());
     virtual xcb_timestamp_t userTime() const;
     virtual void updateWindowRules(Rules::Types selection) = 0;
 
diff --git a/client.h b/client.h
index 023eaf7e73..32d18df0a0 100644
--- a/client.h
+++ b/client.h
@@ -327,7 +327,6 @@ public:
 
     void gotPing(xcb_timestamp_t timestamp);
 
-    void checkWorkspacePosition(QRect oldGeometry = QRect(), int oldDesktop = -2, QRect oldClientGeometry = QRect()) override;
     void updateUserTime(xcb_timestamp_t time = XCB_TIME_CURRENT_TIME);
     xcb_timestamp_t userTime() const override;
     bool hasUserTimeSupport() const;
diff --git a/geometry.cpp b/geometry.cpp
index b26475ef40..31ac6fa9d6 100644
--- a/geometry.cpp
+++ b/geometry.cpp
@@ -1034,7 +1034,7 @@ bool Client::hasOffscreenXineramaStrut() const
     return !region.isEmpty();
 }
 
-void Client::checkWorkspacePosition(QRect oldGeometry, int oldDesktop, QRect oldClientGeometry)
+void AbstractClient::checkWorkspacePosition(QRect oldGeometry, int oldDesktop, QRect oldClientGeometry)
 {
     enum { Left = 0, Top, Right, Bottom };
     const int border[4] = { borderLeft(), borderTop(), borderRight(), borderBottom() };
diff --git a/shell_client.cpp b/shell_client.cpp
index 1cf1fccabf..bbbdbf814b 100644
--- a/shell_client.cpp
+++ b/shell_client.cpp
@@ -300,13 +300,6 @@ QString ShellClient::caption(bool full, bool stripped) const
     return m_shellSurface->title();
 }
 
-void ShellClient::checkWorkspacePosition(QRect oldGeometry, int oldDesktop, QRect oldClientGeometry)
-{
-    Q_UNUSED(oldGeometry)
-    Q_UNUSED(oldDesktop)
-    Q_UNUSED(oldClientGeometry)
-}
-
 void ShellClient::closeWindow()
 {
     if (m_qtExtendedSurface && isCloseable()) {
diff --git a/shell_client.h b/shell_client.h
index 011148abbd..0e401d1747 100644
--- a/shell_client.h
+++ b/shell_client.h
@@ -59,7 +59,6 @@ public:
 
     void blockActivityUpdates(bool b = true) override;
     QString caption(bool full = true, bool stripped = false) const override;
-    void checkWorkspacePosition(QRect oldGeometry = QRect(), int oldDesktop = -2, QRect oldClientGeometry = QRect()) override;
     void closeWindow() override;
     AbstractClient *findModal(bool allow_itself = false) override;
     bool isCloseable() const override;