diff --git a/openmc/polynomial.py b/openmc/polynomial.py
index 24742b8e35..82a6756c82 100644
--- a/openmc/polynomial.py
+++ b/openmc/polynomial.py
@@ -106,9 +106,8 @@ class Zernike(Polynomial):
     """
     def __init__(self, coef, radius=1):
         super().__init__(coef)
-        r"""Solve order from number of coefficients
-        N = (order + 1)(order + 2) / 2
-        """
+        # Solve order from number of coefficients
+        # N = (order + 1)(order + 2) / 2
         self._order = int((math.sqrt(8 * len(self.coef) + 1) - 3) / 2)
         self.radius = radius
         norm_vec = np.ones(len(self.coef))
diff --git a/tests/unit_tests/test_polynomials.py b/tests/unit_tests/test_polynomials.py
index 414670a289..03f1fd5a46 100644
--- a/tests/unit_tests/test_polynomials.py
+++ b/tests/unit_tests/test_polynomials.py
@@ -52,7 +52,7 @@ def test_zernike():
     assert zn_azimuthal.order == 2
     assert zn_azimuthal.radius == 1
 
-    coeff = np.asarray([1.5, -3.6, 9.7e-1, -6.8e-1, 0.11, 0.33e2, 0.002, 13.75, \
+    coeff = np.asarray([1.5, -3.6, 9.7e-1, -6.8e-1, 0.11, 0.33e2, 0.002, 13.75, 
                         3.1, -7.3, 7.8e-1, -1.1e-1, 2.56, 5.25e3, 0.123])
     zn_azimuthal = openmc.Zernike(coeff, 0.392)
     assert zn_azimuthal.order == 4