diff --git a/qstack/spahm/rho/utils.py b/qstack/spahm/rho/utils.py
index 68b9d1d..00a8efb 100644
--- a/qstack/spahm/rho/utils.py
+++ b/qstack/spahm/rho/utils.py
@@ -199,6 +199,7 @@ def build_reaction(reacts_file, prods_file, local=False, print_level=0, summ=Tru
     XP = np.squeeze(XP)
     if diff : rxn = XP - XR
     else: rxn = (XR, XP)
+    if print_level > 0 : progress.finish()
     return rxn
 
 def regroup_symbols(file_list, print_level=0):