diff --git a/tests/unit_tests/test_math.py b/tests/unit_tests/test_math.py
index 60c872431e..e103e96d3f 100644
--- a/tests/unit_tests/test_math.py
+++ b/tests/unit_tests/test_math.py
@@ -156,7 +156,7 @@ def test_rotate_angle():
     uvw0 = np.array([1., 0., 0.])
     phi = [0.]
     mu = 0.
-	prn_seeds = [1, 2, 3, 4, 5, 6]
+    prn_seeds = [1, 2, 3, 4, 5, 6]
     stream = 0
 
     # reference: mu of 0 pulls the vector the bottom, so:
@@ -187,7 +187,7 @@ def test_rotate_angle():
 
 
 def test_maxwell_spectrum():
-	prn_seeds = [1, 2, 3, 4, 5, 6]
+    prn_seeds = [1, 2, 3, 4, 5, 6]
     stream = 0
     T = 0.5
     ref_val = 0.6129982175261098
@@ -197,7 +197,7 @@ def test_maxwell_spectrum():
 
 
 def test_watt_spectrum():
-	prn_seeds = [1, 2, 3, 4, 5, 6]
+    prn_seeds = [1, 2, 3, 4, 5, 6]
     stream = 0
     a = 0.5
     b = 0.75
@@ -208,7 +208,7 @@ def test_watt_spectrum():
 
 
 def test_normal_dist():
-	prn_seeds = [1, 2, 3, 4, 5, 6]
+    prn_seeds = [1, 2, 3, 4, 5, 6]
     stream = 0
     a = 14.08
     b = 0.0
@@ -217,7 +217,7 @@ def test_normal_dist():
 
     assert ref_val == pytest.approx(test_val)
 
-	prn_seeds = [1, 2, 3, 4, 5, 6]
+    prn_seeds = [1, 2, 3, 4, 5, 6]
     stream = 0
     a = 14.08
     b = 1.0