diff --git a/mumps.spec b/mumps.spec
index 07b8b19..4226ea9 100644
--- a/mumps.spec
+++ b/mumps.spec
@@ -508,7 +508,7 @@ Group:          System/Libraries
 Requires:       lua-lmod >= 7.6.1
  %endif
 %if %{without hpc}
-Conflicts:      lib%{pname}%{?scotch:-scotch}5%{?my_suffix} >= 5.3.5 
+Conflicts:      lib%{pname}%{?scotch:-%{scotch}}5%{?my_suffix} >= 5.3.5 
 %endif
 
 %description -n %{libname}