diff --git a/ltfatpy/tests/datasets/read_comp_dct_signal_ex_mat.py b/ltfatpy/tests/datasets/read_comp_dct_signal_ex_mat.py
index fb688611838d2d8628bf48bded4b15e67cf5ae98..5f65c11874876782159bd60cb7a3af2662f8297b 100644
--- a/ltfatpy/tests/datasets/read_comp_dct_signal_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_comp_dct_signal_ex_mat.py
@@ -75,7 +75,7 @@ class DctSignals:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]
 
diff --git a/ltfatpy/tests/datasets/read_comp_dst_signal_ex_mat.py b/ltfatpy/tests/datasets/read_comp_dst_signal_ex_mat.py
index 814a08de8534f6efabe1166125888427e1bdce01..c1133661fb221bea9c5d51e5a0ecf55e60e0935f 100644
--- a/ltfatpy/tests/datasets/read_comp_dst_signal_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_comp_dst_signal_ex_mat.py
@@ -75,7 +75,7 @@ class DstSignals:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]
 
diff --git a/ltfatpy/tests/datasets/read_dgt_signal_ex_mat.py b/ltfatpy/tests/datasets/read_dgt_signal_ex_mat.py
index 2fa1238de64fad62ee1c52a21a4f2a0376f473cb..41db71210ac8c732a300a036ddedcc1932763d28 100644
--- a/ltfatpy/tests/datasets/read_dgt_signal_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_dgt_signal_ex_mat.py
@@ -75,7 +75,7 @@ class DgtSignals:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]
 
diff --git a/ltfatpy/tests/datasets/read_gabframediag_signal_ex_mat.py b/ltfatpy/tests/datasets/read_gabframediag_signal_ex_mat.py
index d7c72c9f8e5f82c661a3726566c13cc6f277f379..0f304c0946d299bbb17fafda9eac7503fa1be85b 100644
--- a/ltfatpy/tests/datasets/read_gabframediag_signal_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_gabframediag_signal_ex_mat.py
@@ -74,7 +74,7 @@ class DiagExamples:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]
 
diff --git a/ltfatpy/tests/datasets/read_gabtight_signal_ex_mat.py b/ltfatpy/tests/datasets/read_gabtight_signal_ex_mat.py
index 7fedd2ddcc6dd7a99080b163ef820e6dcd0baa9e..6442b85c71a99a62c4ed2c5534dfdbca383baa6c 100644
--- a/ltfatpy/tests/datasets/read_gabtight_signal_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_gabtight_signal_ex_mat.py
@@ -74,7 +74,7 @@ class GabTightExamples:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]
 
diff --git a/ltfatpy/tests/datasets/read_ref_mat.py b/ltfatpy/tests/datasets/read_ref_mat.py
index 4600fb650dedb593777892fcffb25fd0692c031f..893fe9cb0489df5e13db357e1371a363663ccc72 100644
--- a/ltfatpy/tests/datasets/read_ref_mat.py
+++ b/ltfatpy/tests/datasets/read_ref_mat.py
@@ -195,7 +195,7 @@ def read_ref_mat(filename, squeeze_arrays=True, adapt_types=True):
       having an integer value, it is converted to int.
 
     """
-    data = scipy.io.loadmat(filename, chars_as_strings=True)['data']
+    data = scipy.io.loadmat(filename, chars_as_strings=True, byte_order='<')['data']
     res = list()
     for item in data[0, :]:
         if item[0, 0].size > 0:
diff --git a/ltfatpy/tests/datasets/read_s0norm_ex_mat.py b/ltfatpy/tests/datasets/read_s0norm_ex_mat.py
index 448b7c08f4116f2be642f44acd4bb70a1f53f05f..8bc1a9b74c97e5ab54e3a66c4fd5d7320c35bea6 100644
--- a/ltfatpy/tests/datasets/read_s0norm_ex_mat.py
+++ b/ltfatpy/tests/datasets/read_s0norm_ex_mat.py
@@ -74,7 +74,7 @@ class S0Examples:
         :param str filename: Name of the matlab data file
         """
         self.Data = scipy.io.loadmat(filename, struct_as_record=False,
-                                     squeeze_me=True)['Data']
+                                     squeeze_me=True, byte_order='<')['Data']
         self.ind = 0
         self.size = self.Data.shape[0]