diff --git a/kandinsky/include/kandinsky/font.h b/kandinsky/include/kandinsky/font.h
index d0031c9ba..a4ae9c786 100644
--- a/kandinsky/include/kandinsky/font.h
+++ b/kandinsky/include/kandinsky/font.h
@@ -44,7 +44,7 @@ private:
     if (cInt < 0) {
       /* A char casted as int takes its value between -127 and +128, but we want
        * a positive value. -127 is thus 129, -126 is 130, etc. */
-      cInt+=128+(cInt-(-127)+1);
+      cInt=128+(cInt-(-127)+1);
     }
     return cInt - k_magicCharOffsetValue;
   }