diff --git a/simsz/__init__.py b/simsz/__init__.py
index 5252bd1..001afbf 100644
--- a/simsz/__init__.py
+++ b/simsz/__init__.py
@@ -3,5 +3,6 @@
 
 try:
     from simsz.filters import get_tSZ_signal_aperture_photometry
+    from simsz.utils import Mpc_to_arcmin
 except ModuleNotFoundError:
     pass
\ No newline at end of file
diff --git a/tests/test_simtools.py b/tests/test_simtools.py
index d4fd353..edfd160 100644
--- a/tests/test_simtools.py
+++ b/tests/test_simtools.py
@@ -25,5 +25,4 @@ def test_f_sz(self):
         T_CMB = cosmo.Tcmb0
         fsz = simtools.f_sz(freq,T_CMB)
         fsz_expected = 12.509
-        assert u.isclose(fsz,fsz_expected), 
-        f"Expected {fsz_expected}, but got {fsz}"
\ No newline at end of file
+        assert u.isclose(fsz,fsz_expected),f"Expected {fsz_expected}, but got {fsz}"
\ No newline at end of file
diff --git a/tests/test_szcluster.py b/tests/test_szcluster.py
index 5796cc4..3f99931 100644
--- a/tests/test_szcluster.py
+++ b/tests/test_szcluster.py
@@ -89,7 +89,7 @@ def test_Pth_Battaglia2012(self):
         x = radii/R200 #As defined in Battaglia 2012
         Pth_expected = P0 * (x/xc)**(-0.3) * (1 + (x/xc))**(-beta)
         result = Pth_Battaglia2012(radii,R200,-0.3,1.0,beta,xc,P0)
-        assert np.allclose(result, Pth_expected), f"Expected {Pth_expected}, but got {result}"
+        assert np.allclose(result, Pth_expected),f"Expected {Pth_expected}, but got {result}"
 
     def test_epp_to_y(self):
         '''
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 0eaed31..bb76c79 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -22,7 +22,7 @@ def test_arcmin_to_Mpc(self):
         (cosmo,sigma8,ns) = get_mock_cosmology()
         value_expected = 0.559219683539306
         value_calculated = arcmin_to_Mpc(r, z, cosmo)
-        assert u.isclose(value_calculated, value_expected), f"Expected {value_expected}, but got {value_calculated}"
+        assert u.isclose(value_calculated, value_expected),f"Expected {value_expected}, but got {value_calculated}"
 
     def test_Mpc_to_arcmin(self):
         r = 1
@@ -30,4 +30,4 @@ def test_Mpc_to_arcmin(self):
         (cosmo,sigma8,ns) = get_mock_cosmology()
         value_expected = 1.7882060117608733
         value_calculated = Mpc_to_arcmin(r, z, cosmo)
-        assert u.isclose(value_calculated, value_expected), f"Expected {value_expected}, but got {value_calculated}"
\ No newline at end of file
+        assert u.isclose(value_calculated, value_expected),f"Expected {value_expected}, but got {value_calculated}"
\ No newline at end of file