diff --git a/tjpcov/clusters_helpers.py b/tjpcov/clusters_helpers.py
index eba73e66..bb4b619f 100644
--- a/tjpcov/clusters_helpers.py
+++ b/tjpcov/clusters_helpers.py
@@ -142,7 +142,7 @@ def two_fast_algorithm(self, z1, z2):
             print(
                 err,
                 f"""\n
-                    Value you tried to interpolate: {max(r1,r2)} Mpc,
+                    Value you tried to interpolate: {max(r1,r2)} Mpc, 
                     Input r {r1}, {r2}
                     Valid range range:
                     [{self.r_grid[self.idx_min]}, {self.r_grid[self.idx_max]}]