diff --git a/src/utility/cft.jl b/src/utility/cft.jl
index aa02b5d..fd68996 100644
--- a/src/utility/cft.jl
+++ b/src/utility/cft.jl
@@ -1,4 +1,4 @@
-Potts_βc(q) = log(1+sqrt(q))
+Potts_βc(q) = log(1 + sqrt(q))
 
 function cft_data(scheme::TNRScheme; v=1, unitcell=1)
     # make the indices