diff --git a/mumps.changes b/mumps.changes
index 3c9ec97..e5d63cb 100644
--- a/mumps.changes
+++ b/mumps.changes
@@ -5,6 +5,8 @@ Tue Dec  3 12:06:39 UTC 2019 - Egbert Eich <eich@suse.com>
 - Remove requires for libblacs from HPC builds which is not
   required there.
 - Add openmpi3 non-HPC build flavor.
+- Remove libblacs as explicit dependency for HPC build. BLACS
+  is part of scalapack.
 
 -------------------------------------------------------------------
 Fri Nov 29 22:10:30 UTC 2019 - Egbert Eich <eich@suse.com>
diff --git a/mumps.spec b/mumps.spec
index c48c988..8029f13 100644
--- a/mumps.spec
+++ b/mumps.spec
@@ -471,7 +471,6 @@ Requires:       lapack-devel
 Recommends:     gcc-fortran
 %else # hpc
 %hpc_requires_devel
-Requires:       libblacs2-%{compiler_family}-%{mpi_family}%{?mpi_ver}-hpc-devel
 Requires:       libscalapack2-%{compiler_family}-%{mpi_family}%{?mpi_ver}-hpc-devel
 %endif