diff --git a/mumps.changes b/mumps.changes
index 8a4b680..0c42001 100644
--- a/mumps.changes
+++ b/mumps.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Tue Jun 30 20:05:56 UTC 2020 - Egbert Eich <eich@suse.com>
+
+- With gcc10, some fortran code started failing to build -
+  add compiler option -std=legacy to fix (bsc#1173549).
+
 -------------------------------------------------------------------
 Tue Jun  2 07:50:37 UTC 2020 - Egbert Eich <eich@suse.com>
 
diff --git a/mumps.spec b/mumps.spec
index d7fb99a..8bba38d 100644
--- a/mumps.spec
+++ b/mumps.spec
@@ -580,7 +580,7 @@ module load openblas scalapack
 %if %{with mpi}
 # Set LD_LIBRARY_PATH and PATH
  %define C_C mpicc
- %define F_C mpif77
+ %define F_C mpif77 -std=legacy
  %define F_L mpif77
  %define SCALAP -lscalapack %{!?with_hpc:-lblacs}
  %define MUMPS_LIBF77 %{!?with_hpc:-L%{my_libdir}} %{?mumps_f77_mpilibs}
@@ -590,7 +590,7 @@ module load openblas scalapack
  %define LIBS \\\$(LIBPAR)
 %else # mpi
  %define C_C gcc
- %define F_C gfortran
+ %define F_C gfortran -std=legacy
  %define F_L gfortran
  %define LIBSEQNEEDED libseqneeded
  %define MUMPS_LIBF77 -lmpiseq%{?PLAT}