diff --git a/examples/cnn_train.m b/examples/cnn_train.m
index c9a94542..07f3b561 100644
--- a/examples/cnn_train.m
+++ b/examples/cnn_train.m
@@ -63,10 +63,10 @@
     if isfield(net.layers{i}, 'weights')
       J = numel(net.layers{i}.weights) ;
       if ~isfield(net.layers{i}, 'learningRate')
-        net.layers{i}.learningRate = ones(1, J, 'single') ;
+        net.layers{i}.learningRate = ones(1, J) ;
       end
       if ~isfield(net.layers{i}, 'weightDecay')
-        net.layers{i}.weightDecay = ones(1, J, 'single') ;
+        net.layers{i}.weightDecay = ones(1, J) ;
       end
     end
   end