diff --git a/mlclass-ex3/predictOneVsAll.m b/mlclass-ex3/predictOneVsAll.m
index 8b02a6c..9e4f46c 100644
--- a/mlclass-ex3/predictOneVsAll.m
+++ b/mlclass-ex3/predictOneVsAll.m
@@ -27,7 +27,7 @@
 %       
 
 % train each row for all classes and keep the label with the highest probability
-htheta = X * all_theta';
+htheta = sigmoid (X * all_theta');
 [temp, p] = max(htheta, [], 2);
 
 % =========================================================================