diff --git a/travis/build_env.sh b/travis/build_env.sh
index 75e89ae54c..e19cdbbab3 100755
--- a/travis/build_env.sh
+++ b/travis/build_env.sh
@@ -29,6 +29,13 @@ echo DISTR is "$DISTR"
 #  HOMEBREW_NO_AUTO_UPDATE=1 brew cask uninstall oclint || true  
 #  HOMEBREW_NO_INSTALL_CLEANUP=1  HOMEBREW_NO_AUTO_UPDATE=1 brew install gcc "$MPI_IMPL" openblas python3 ||true
      HOMEBREW_NO_INSTALL_CLEANUP=1  HOMEBREW_NO_AUTO_UPDATE=1 brew install gcc "$MPI_IMPL" python3 gsed grep automake autoconf ||true
+     if [[ "$FC" != "gfortran" ]]; then
+	 #install non default gfortran, ie gfortran-9
+	 #get version
+	 mygccver=$(echo "$FC"|cut -d - -f 2)
+	 echo mygccver is "$mygccver"
+	 HOMEBREW_NO_INSTALL_CLEANUP=1  HOMEBREW_NO_AUTO_UPDATE=1 brew reinstall gcc@"$mygccver" || true
+     fi
      #hack to fix Github actions mpif90
      gccver=`brew list --versions gcc| head -1 |cut -c 5-`
      echo brew gccver is $gccver