Fortran 77 comments beginning with c, C etc not properly highlighted

Neovim
1

Comments in Fortran 77 code do not behave as comments and are syntax highlighted if not began with !. For example, comments that start with c C etc show up with syntax highlighting. Please help to enable proper comments in F77 Fixed Source Fortran files (Even nano properly shows the comments, so nvim has had to show’em :slight_smile: …).
test.f

program test
print *, "Hello World!"
! It's a comment
c It's also a comment, but not properly shown
end
2

Sorry for the inconveniece. It was some issue with the nvim treesitter fortran parser. Uninstalling the fortran parser solved the issue. Feel free to delete the post if necessary.