diff --git a/example/caffe/All_CNN.prototxt b/example/caffe/All_CNN.prototxt
index 842ebd9b1..b6bfb725d 100644
--- a/example/caffe/All_CNN.prototxt
+++ b/example/caffe/All_CNN.prototxt
@@ -7,6 +7,9 @@ layer {
   include {
     phase: TRAIN
   }
+  transform_param{
+    crop_size: 32
+  }
   data_param {
     # path to GCN preprocessed and ZCA whitened cifar-10 train data
     source: "cifar-10_train_lmdb"
diff --git a/example/caffe/lenet.prototxt b/example/caffe/lenet.prototxt
index a9175bdb7..b0248e57d 100644
--- a/example/caffe/lenet.prototxt
+++ b/example/caffe/lenet.prototxt
@@ -9,6 +9,7 @@ layer {
   }
   transform_param {
     scale: 0.00390625
+    crop_size: 28
   }
   data_param {
     source: "examples/mnist/mnist_train_lmdb"
diff --git a/example/caffe/siamese_mnist.prototxt b/example/caffe/siamese_mnist.prototxt
index 8baa1fc5d..13d7d982a 100644
--- a/example/caffe/siamese_mnist.prototxt
+++ b/example/caffe/siamese_mnist.prototxt
@@ -9,6 +9,7 @@ layer {
   }
   transform_param {
     scale: 0.00390625
+    crop_size: 28
   }
   data_param {
     source: "examples/siamese/mnist_siamese_train_leveldb"