diff --git a/effects/showfps.cpp b/effects/showfps.cpp
index c4a3cef159..3d07279132 100644
--- a/effects/showfps.cpp
+++ b/effects/showfps.cpp
@@ -159,7 +159,7 @@ void ShowFpsEffect::paintGL( int fps )
 
 /*
  Differences between OpenGL and XRender:
- - differenly specified rectangles (X: width/height, O: x2,y2)
+ - differently specified rectangles (X: width/height, O: x2,y2)
  - XRender uses pre-multiplied alpha
 */
 void ShowFpsEffect::paintXrender( int fps )
diff --git a/lib/kwineffects.h b/lib/kwineffects.h
index 3b51c0aecf..ea18e9fc38 100644
--- a/lib/kwineffects.h
+++ b/lib/kwineffects.h
@@ -8,7 +8,7 @@ You can Freely distribute this program under the GNU General Public
 License. See the file "COPYING" for the exact licensing terms.
 ******************************************************************/
 
-// TODO MIT or some other licence, perhaps move to some lib
+// TODO MIT or some other license, perhaps move to some lib
 
 #ifndef KWIN_LIB_EFFECTS_H
 #define KWIN_LIB_EFFECTS_H