diff --git a/ssf/defaults.yaml b/ssf/defaults.yaml
index 0d36c612..6301a5c0 100644
--- a/ssf/defaults.yaml
+++ b/ssf/defaults.yaml
@@ -22,8 +22,8 @@ ssf_node_anchors:
             #       An alternative method could be to use:
             #       `git describe --abbrev=0 --tags`
             # yamllint disable rule:line-length rule:quoted-strings
-            title: "chore(git): add Bundler config dir to '`'.gitignore'`' [skip ci]"
-            body: '* Checked using https://github.com/myii/ssf-formula/pull/130'
+            title: "fix(libtofs): “files_switch” mess up the variable exported by “map.jinja” [skip ci]"
+            body: '* Checked using https://github.com/myii/ssf-formula/pull/131'
             # yamllint enable rule:line-length rule:quoted-strings
           github:
             owner: 'saltstack-formulas'
diff --git a/ssf/files/default/formula/libtofs.jinja b/ssf/files/default/formula/libtofs.jinja
index 900e62b5..ffb3b545 100644
--- a/ssf/files/default/formula/libtofs.jinja
+++ b/ssf/files/default/formula/libtofs.jinja
@@ -82,7 +82,7 @@
     ) %}
     {#- Append an empty value to evaluate as `default` in the loop below #}
     {%- if '' not in fsl %}
-      {%- do fsl.append('') %}
+      {%- set fsl = fsl + [''] %}
     {%- endif %}
     {%- for fs in fsl %}
       {%- for src_file in src_files %}
diff --git a/ssf/libtofs.jinja b/ssf/libtofs.jinja
index 900e62b5..ffb3b545 100644
--- a/ssf/libtofs.jinja
+++ b/ssf/libtofs.jinja
@@ -82,7 +82,7 @@
     ) %}
     {#- Append an empty value to evaluate as `default` in the loop below #}
     {%- if '' not in fsl %}
-      {%- do fsl.append('') %}
+      {%- set fsl = fsl + [''] %}
     {%- endif %}
     {%- for fs in fsl %}
       {%- for src_file in src_files %}