diff --git a/bob/bio/base/mixins/__init__.py b/bob/bio/base/mixins/__init__.py
index 729af155f8f3f72cd1e3805f4a6efe40e2787dd7..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644
--- a/bob/bio/base/mixins/__init__.py
+++ b/bob/bio/base/mixins/__init__.py
@@ -1,2 +0,0 @@
-from .linearize import Linearize, SampleLinearize, CheckpointSampleLinearize
-from .pca import CheckpointSamplePCA, SamplePCA
diff --git a/bob/bio/base/test/test_mixins.py b/bob/bio/base/test/test_transformers.py
similarity index 93%
rename from bob/bio/base/test/test_mixins.py
rename to bob/bio/base/test/test_transformers.py
index 27701f9d4b4f1cce79e890f9a42bac0761e9e67c..97d290756620dc2e1689c7aadf72c96a0f6071b5 100644
--- a/bob/bio/base/test/test_mixins.py
+++ b/bob/bio/base/test/test_transformers.py
@@ -8,7 +8,7 @@ import numpy
 import tempfile
 from sklearn.utils.validation import check_is_fitted
 
-from bob.bio.base.mixins import Linearize, SampleLinearize, CheckpointSampleLinearize
+from bob.bio.base.transformers import Linearize, SampleLinearize, CheckpointSampleLinearize
 def test_linearize_processor():
     
     ## Test the transformer only
@@ -32,7 +32,7 @@ def test_linearize_processor():
         assert os.path.exists(os.path.join(d, "1.h5"))
 
 
-from bob.bio.base.mixins import SamplePCA, CheckpointSamplePCA
+from bob.bio.base.transformers import SamplePCA, CheckpointSamplePCA
 def test_pca_processor():
     
     ## Test wrapped in to a Sample
diff --git a/bob/bio/base/transformers/__init__.py b/bob/bio/base/transformers/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..729af155f8f3f72cd1e3805f4a6efe40e2787dd7
--- /dev/null
+++ b/bob/bio/base/transformers/__init__.py
@@ -0,0 +1,2 @@
+from .linearize import Linearize, SampleLinearize, CheckpointSampleLinearize
+from .pca import CheckpointSamplePCA, SamplePCA
diff --git a/bob/bio/base/mixins/linearize.py b/bob/bio/base/transformers/linearize.py
similarity index 100%
rename from bob/bio/base/mixins/linearize.py
rename to bob/bio/base/transformers/linearize.py
diff --git a/bob/bio/base/mixins/pca.py b/bob/bio/base/transformers/pca.py
similarity index 100%
rename from bob/bio/base/mixins/pca.py
rename to bob/bio/base/transformers/pca.py