diff --git a/pytools/idfx_test.py b/pytools/idfx_test.py
index cf16deae..beb3ed80 100644
--- a/pytools/idfx_test.py
+++ b/pytools/idfx_test.py
@@ -554,6 +554,9 @@ def standardTest(self):
             comm = [sys.executable, "testidefix.py"]
             if self.noplot:
                 comm.append("-noplot")
+            if self.inifile:
+                comm.append("-ini")
+                comm.append(self.inifile)
 
             print(bcolors.OKCYAN + "Running standard test...")
             try:
diff --git a/test/SelfGravity/RandomSphere/python/testidefix.py b/test/SelfGravity/RandomSphere/python/testidefix.py
index cff04f92..bc53c008 100755
--- a/test/SelfGravity/RandomSphere/python/testidefix.py
+++ b/test/SelfGravity/RandomSphere/python/testidefix.py
@@ -37,7 +37,7 @@
     "-noplot", default=False, help="disable plotting", action="store_true"
 )
 
-args = parser.parse_args()
+args, unkown_args = parser.parse_known_args()
 
 # Read vtk
 V = readVTK("../data.0000.vtk")
diff --git a/test/SelfGravity/RandomSphereCartesian/python/testidefix.py b/test/SelfGravity/RandomSphereCartesian/python/testidefix.py
index 37f5d0cd..61290030 100755
--- a/test/SelfGravity/RandomSphereCartesian/python/testidefix.py
+++ b/test/SelfGravity/RandomSphereCartesian/python/testidefix.py
@@ -61,7 +61,7 @@ def getPsiTheoretical(x, y, z, rho):
     "-noplot", default=False, help="disable plotting", action="store_true"
 )
 
-args = parser.parse_args()
+args, unknown = parser.parse_known_args()
 
 # Read vtk
 V = readVTK("../data.0000.vtk")