diff --git a/client.cpp b/client.cpp
index 1c60e62cb4..44674e15fa 100644
--- a/client.cpp
+++ b/client.cpp
@@ -1926,7 +1926,7 @@ void Client::updateOpacity()
         else
             setOpacity(options->translucentInactiveWindows && !(keepAbove() && options->keepAboveAsActive),
                     options->inactiveWindowOpacity);
-        // deactivate dependend minor windows as well
+        // deactivate dependent minor windows as well
         if (isBMP())
         // beep-media-player, only undecorated windows (gtk2 xmms, xmms doesn't work with compmgr at all - s.e.p. :P )
             {
diff --git a/lib/kdecoration_p.cpp b/lib/kdecoration_p.cpp
index 0a90774e28..5d8b544175 100644
--- a/lib/kdecoration_p.cpp
+++ b/lib/kdecoration_p.cpp
@@ -153,7 +153,7 @@ unsigned long KDecorationOptionsPrivate::updateKWinSettings( KConfig* config )
     inactiveFont = config->readEntry("inactiveFont", activeFont);
 
     activeFontSmall = activeFont;
-#warning KDE4 : is it usefull ? ( temporary hack )
+#warning KDE4 : is it useful ? ( temporary hack )
 //    activeFontSmall.setPointSize(activeFont.pointSize() - 2 > 0 ? activeFont.pointSize() - 2 : activeFont.pointSize()+1 );
     activeFontSmall = config->readEntry("activeFontSmall", activeFontSmall);
     inactiveFontSmall = config->readEntry("inactiveFontSmall", activeFontSmall);
diff --git a/workspace.cpp b/workspace.cpp
index 3d4d408feb..078767f58d 100644
--- a/workspace.cpp
+++ b/workspace.cpp
@@ -321,7 +321,7 @@ void Workspace::init()
     if( !setCurrentDesktop( initial_desktop ))
         setCurrentDesktop( 1 );
 
-    // now we know how many desktops we'll, thus, we initialise the positioning object
+    // now we know how many desktops we'll, thus, we initialize the positioning object
     initPositioning = new Placement(this);
 
     reconfigureTimer.setSingleShot( true );