diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1e7b3026..cbce9946 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -84,7 +84,7 @@ jobs:
           ${{ needs.info.outputs.ffmpeg-releases }}
           EOF
           mk_delim() { local f='%s_EOF_%d_' ; printf -- "${f}" "$1" "${RANDOM}" ; } ;
-          open_ml_var() { local f=''\%'s<<"'\%'s"\n' ; printf -- "${f}" "$2" "$1" ; } ;
+          open_ml_var() { local f=''\%'s<<'\%'s\n' ; printf -- "${f}" "$2" "$1" ; } ;
           close_ml_var() { local f='%s\n' ; printf -- "${f}" "$1" ; } ;
           {
             var='FFMPEG_DATE' ;