diff --git a/roles/stage-output/tasks/main.yaml b/roles/stage-output/tasks/main.yaml
index 5b6d2f043..4b5924227 100644
--- a/roles/stage-output/tasks/main.yaml
+++ b/roles/stage-output/tasks/main.yaml
@@ -5,34 +5,18 @@
   register: sources
   no_log: true
 
-- name: Output a warning when input is not a dict and not empty
-  debug:
-    msg: "WARNING: extensions_to_txt is a list, values defined by parents will be overwritten"
-  when:
-    - extensions_to_txt is not mapping
-    - extensions_to_txt
-
-- name: Build the extensions list when input is not a dict (including empty)
+- name: Build the extensions list from a dict (or empty)
   set_fact:
     extension_list: >
-      {% set extensions = ['__does_not_match__'] -%}
+      {% set extensions = ['__do_not_match__'] -%}
       {% if extensions_to_txt -%}
-        {% set extensions = extensions_to_txt -%}
+        {% for extension, extension_bool in extensions_to_txt.items() -%}
+          {% if extension_bool -%}
+            {% set _ = extensions.append(extension) -%}
+          {% endif -%}
+        {% endfor -%}
       {% endif -%}
       {{- extensions -}}
-  when: extensions_to_txt is not mapping
-
-- name: Build the extensions list when input is a dict
-  set_fact:
-    extension_list: >
-      {% set extensions = [] -%}
-      {% for extension, extension_bool in extensions_to_txt.items() -%}
-        {% if extension_bool -%}
-          {% set _ = extensions.append(extension) -%}
-        {% endif -%}
-      {% endfor -%}
-      {{- extensions -}}
-  when: extensions_to_txt is mapping
 
 - name: Build the extensions regular expression
   set_fact: