diff --git a/tests/IVIMmodels/unit_tests/simple_test_run_of_algorithm.py b/tests/IVIMmodels/unit_tests/simple_test_run_of_algorithm.py
index 4c71604..92473bb 100644
--- a/tests/IVIMmodels/unit_tests/simple_test_run_of_algorithm.py
+++ b/tests/IVIMmodels/unit_tests/simple_test_run_of_algorithm.py
@@ -4,7 +4,7 @@
 #from src.standardized.ETP_SRI_LinearFitting import ETP_SRI_LinearFitting
 from src.standardized.IAR_LU_biexp import IAR_LU_biexp
 #from src.standardized.IAR_LU_segmented_2step import IAR_LU_segmented_2step
-from src.standardized.PVH_KB_NKI_IVIMfit import PVH_KB_NKI_IVIMfit
+from src.standardized.PvH_KB_NKI_IVIMfit import PvH_KB_NKI_IVIMfit
 #from src.standardized.PV_MUMC_biexp import PV_MUMC_biexp
 
 ## Simple test code... 
@@ -27,7 +27,7 @@ def ivim_model(b, S0=1, f=0.1, Dstar=0.01, D=0.001):
     
 #model1 = ETP_SRI_LinearFitting(thresholds=[200])
 #model2 = IAR_LU_biexp()
-model2 = PVH_KB_NKI_IVIMfit()
+model2 = PvH_KB_NKI_IVIMfit()
 
 #dev_test_run(model1, linear_fit_option=True)
 dev_test_run(model2)