diff --git a/nipype/interfaces/dtitk/tests/test_auto_affScalarVol.py b/nipype/interfaces/dtitk/tests/test_auto_AffScalarVol.py
similarity index 100%
rename from nipype/interfaces/dtitk/tests/test_auto_affScalarVol.py
rename to nipype/interfaces/dtitk/tests/test_auto_AffScalarVol.py
diff --git a/nipype/interfaces/dtitk/tests/test_auto_affSymTensor3DVol.py b/nipype/interfaces/dtitk/tests/test_auto_AffSymTensor3DVol.py
similarity index 100%
rename from nipype/interfaces/dtitk/tests/test_auto_affSymTensor3DVol.py
rename to nipype/interfaces/dtitk/tests/test_auto_AffSymTensor3DVol.py
diff --git a/nipype/interfaces/dtitk/tests/test_auto_BinThreshTASK.py b/nipype/interfaces/dtitk/tests/test_auto_BinThreshTask.py
similarity index 100%
rename from nipype/interfaces/dtitk/tests/test_auto_BinThreshTASK.py
rename to nipype/interfaces/dtitk/tests/test_auto_BinThreshTask.py
diff --git a/nipype/interfaces/dtitk/tests/test_auto_diffeoScalarVol.py b/nipype/interfaces/dtitk/tests/test_auto_DiffeoScalarVol.py
similarity index 100%
rename from nipype/interfaces/dtitk/tests/test_auto_diffeoScalarVol.py
rename to nipype/interfaces/dtitk/tests/test_auto_DiffeoScalarVol.py
diff --git a/nipype/interfaces/dtitk/tests/test_auto_diffeoSymTensor3DVol.py b/nipype/interfaces/dtitk/tests/test_auto_DiffeoSymTensor3DVol.py
similarity index 100%
rename from nipype/interfaces/dtitk/tests/test_auto_diffeoSymTensor3DVol.py
rename to nipype/interfaces/dtitk/tests/test_auto_DiffeoSymTensor3DVol.py