diff --git a/drawFixationCross.m b/drawFixationCross.m
index 38edc47..5ce4a2f 100644
--- a/drawFixationCross.m
+++ b/drawFixationCross.m
@@ -4,7 +4,7 @@ function drawFixationCross(cfg, color)
     Screen('DrawLines', ...
         cfg.screen.win, ...
         cfg.allCoords, ...
-        cfg.lineWidthPix, ...
+        cfg.fixation.lineWidthPix, ...
         color, ...
         [cfg.screen.center(1) cfg.screen.center(2)], 1);
 
diff --git a/initPTB.m b/initPTB.m
index 533164d..0a15c59 100644
--- a/initPTB.m
+++ b/initPTB.m
@@ -59,15 +59,15 @@
     % monitor width
     % This assumes that the window fills the whole screen
     cfg.screen.FOV = computeFOV(cfg);
-    cfg.screen.ppd = cfg.winRect(3) / cfg.FOV;
+    cfg.screen.ppd = cfg.screen.winRect(3) / cfg.screen.FOV;
 
     %% Select specific text font, style and size
     initText(cfg);
 
     %% Timing
     % Query frame duration
-    cfg.screen.ifi = Screen('GetFlipInterval', cfg.win);
-    cfg.screen.monRefresh = 1 / cfg.ifi;
+    cfg.screen.ifi = Screen('GetFlipInterval', cfg.screen.win);
+    cfg.screen.monitorRefresh = 1 / cfg.screen.ifi;
 
     % Set priority for script execution to realtime priority:
     Priority(MaxPriority(cfg.screen.win));