diff --git a/clients/laptop/laptopclient.cpp b/clients/laptop/laptopclient.cpp
index e0f6e7696e..f47a7bab76 100644
--- a/clients/laptop/laptopclient.cpp
+++ b/clients/laptop/laptopclient.cpp
@@ -427,7 +427,7 @@ int LaptopClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const K
             return 0;
 
         default:
-            return 0;
+            return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
     }
 }
 
diff --git a/clients/modernsystem/modernsys.cpp b/clients/modernsystem/modernsys.cpp
index 7909045408..5abf02758e 100644
--- a/clients/modernsystem/modernsys.cpp
+++ b/clients/modernsystem/modernsys.cpp
@@ -407,7 +407,7 @@ bool ModernSys::decorationBehaviour(DecorationBehaviour behaviour) const
     }
 }
 
-int ModernSys::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *) const
+int ModernSys::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
 {
     bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
 
@@ -451,7 +451,7 @@ int ModernSys::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCom
             return 3;
 
         default:
-            return 0;
+            return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
     }
 }
 
diff --git a/clients/plastik/plastikclient.cpp b/clients/plastik/plastikclient.cpp
index dd9d756caa..cdfcd4eb67 100644
--- a/clients/plastik/plastikclient.cpp
+++ b/clients/plastik/plastikclient.cpp
@@ -80,7 +80,7 @@ bool PlastikClient::decorationBehaviour(DecorationBehaviour behaviour) const
     }
 }
 
-int PlastikClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *) const
+int PlastikClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
 {
     bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
 
@@ -142,11 +142,14 @@ int PlastikClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const
         case LM_ButtonSpacing:
             return 1;
 
+        case LM_ButtonMarginTop:
+            return 0;
+
         case LM_ExplicitButtonSpacer:
             return 3;
 
         default:
-            return 0;
+            return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
     }
 }
 
diff --git a/clients/quartz/quartz.cpp b/clients/quartz/quartz.cpp
index 919c9c8701..8579717801 100644
--- a/clients/quartz/quartz.cpp
+++ b/clients/quartz/quartz.cpp
@@ -540,7 +540,7 @@ bool QuartzClient::decorationBehaviour(DecorationBehaviour behaviour) const
 	}
 }
 
-int QuartzClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *) const
+int QuartzClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
 {
 	bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
 
@@ -582,7 +582,7 @@ int QuartzClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const K
 			return 3;
 
 		default:
-			return 0;
+			return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
 	}
 }
 
diff --git a/clients/redmond/redmond.cpp b/clients/redmond/redmond.cpp
index 51cd91c5c5..f5cabcc9cc 100644
--- a/clients/redmond/redmond.cpp
+++ b/clients/redmond/redmond.cpp
@@ -423,7 +423,7 @@ int RedmondDeco::layoutMetric(LayoutMetric lm, bool respectWindowState, const KC
 			return 2;
 
 		default:
-			return 0;
+			return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
 	}
 }
 
diff --git a/clients/web/Web.cpp b/clients/web/Web.cpp
index f65aaa324c..ab3c6aa2c6 100644
--- a/clients/web/Web.cpp
+++ b/clients/web/Web.cpp
@@ -80,7 +80,7 @@ bool WebClient::decorationBehaviour(DecorationBehaviour behaviour) const
     }
 }
 
-int WebClient::layoutMetric(LayoutMetric lm, bool /*respectWindowState*/, const KCommonDecorationButton *) const
+int WebClient::layoutMetric(LayoutMetric lm, bool respectWindowState, const KCommonDecorationButton *btn) const
 {
 //   bool maximized = maximizeMode()==MaximizeFull && !options()->moveResizeMaximizedWindows();
 
@@ -112,7 +112,7 @@ int WebClient::layoutMetric(LayoutMetric lm, bool /*respectWindowState*/, const
       return 0;
 
     default:
-      return 0;
+      return KCommonDecoration::layoutMetric(lm, respectWindowState, btn);
   }
 }