diff --git a/clients/b2/b2client.h b/clients/b2/b2client.h
index cceb888c87..4a3b2db8ed 100644
--- a/clients/b2/b2client.h
+++ b/clients/b2/b2client.h
@@ -36,7 +36,7 @@ class B2Button : public Q3Button
 {
 public:
     B2Button(B2Client *_client=0, QWidget *parent=0, const QString& tip=NULL, const int realizeBtns = Qt::LeftButton);
-    ~B2Button() {};
+    ~B2Button() {}
 
     void setBg(const QColor &c){bg = c;}
     void setPixmaps(QPixmap *pix, QPixmap *pixDown, QPixmap *iPix,
diff --git a/clients/web/Web.h b/clients/web/Web.h
index 9d4c9b3ed6..c22ec2c62f 100644
--- a/clients/web/Web.h
+++ b/clients/web/Web.h
@@ -73,8 +73,8 @@ namespace Web
 
     public:
 
-      WebFactory() {};
-      virtual ~WebFactory() {};
+      WebFactory() {}
+      virtual ~WebFactory() {}
       virtual KDecoration* createDecoration( KDecorationBridge* );
       virtual bool reset( unsigned long changed );
       virtual bool supports( Ability ability );
diff --git a/kcmkwin/kwindecoration/buttons.h b/kcmkwin/kwindecoration/buttons.h
index 9570add048..f38bf6a5eb 100644
--- a/kcmkwin/kwindecoration/buttons.h
+++ b/kcmkwin/kwindecoration/buttons.h
@@ -70,7 +70,7 @@ class ButtonDrag : public Q3StoredDrag
 {
 	public:
 		ButtonDrag( Button btn, QWidget* parent, const char* name=0 );
-		~ButtonDrag() {};
+		~ButtonDrag() {}
 
 		static bool canDecode( QDropEvent* e );
 		static bool decode( QDropEvent* e, Button& btn );
diff --git a/lib/kdecoration.h b/lib/kdecoration.h
index 9ad55a0878..9915f32662 100644
--- a/lib/kdecoration.h
+++ b/lib/kdecoration.h
@@ -175,7 +175,7 @@ class KDecorationProvides
     : public KDecorationDefines
     {
     public:
-        virtual  ~KDecorationProvides(){};
+        virtual  ~KDecorationProvides(){}
 		virtual bool provides( Requirement req ) = 0;
     };
 
diff --git a/lib/kdecoration_p.h b/lib/kdecoration_p.h
index 2eb475eb24..fb9f7d78aa 100644
--- a/lib/kdecoration_p.h
+++ b/lib/kdecoration_p.h
@@ -60,7 +60,7 @@ class KWIN_EXPORT KDecorationOptionsPrivate : public KDecorationDefines
 class KDecorationBridge : public KDecorationDefines
     {
     public:
-	virtual ~KDecorationBridge(){};
+	virtual ~KDecorationBridge(){}
 	virtual bool isActive() const = 0;
 	virtual bool isCloseable() const = 0;
 	virtual bool isMaximizable() const = 0;
diff --git a/utils.h b/utils.h
index 98e7f285bc..0636218d02 100644
--- a/utils.h
+++ b/utils.h
@@ -260,22 +260,22 @@ inline bool compositing() { return scene != NULL; }
 #define KWIN_CHECK_PREDICATE( name, cls, check ) \
 struct name \
     { \
-    inline bool operator()( const cls* cl ) { return check; }; \
+    inline bool operator()( const cls* cl ) { return check; } \
     }
 
 #define KWIN_COMPARE_PREDICATE( name, cls, type, check ) \
 struct name \
     { \
     typedef type type_helper; /* in order to work also with type being 'const Client*' etc. */ \
-    inline name( const type_helper& compare_value ) : value( compare_value ) {}; \
-    inline bool operator()( const cls* cl ) { return check; }; \
+    inline name( const type_helper& compare_value ) : value( compare_value ) {} \
+    inline bool operator()( const cls* cl ) { return check; } \
     const type_helper& value; \
     }
 
 #define KWIN_PROCEDURE( name, cls, action ) \
 struct name \
     { \
-    inline void operator()( cls* cl ) { action; }; \
+    inline void operator()( cls* cl ) { action; } \
     }
 
 KWIN_CHECK_PREDICATE( TruePredicate, Client, cl == cl /*true, avoid warning about 'cl' */ );