diff --git a/src/rougail/annotator/param.py b/src/rougail/annotator/param.py
index 9fa5404b..adc82747 100644
--- a/src/rougail/annotator/param.py
+++ b/src/rougail/annotator/param.py
@@ -87,7 +87,7 @@ class ParamAnnotator:
                 elif param.type == 'index':
                     for target in obj.target:
                         if not self.objectspace.paths.is_follower(target.name.path):
-                            msg = _(f'"{param.type}" parameter cannot be set with target "{target.name}"'
+                            msg = _(f'"{param.type}" parameter cannot be set with target "{target.name.name}"'
                                     f' which is not a follower variable')
                             raise DictConsistencyError(msg, 60, obj.xmlfiles)
                     pass
diff --git a/tests/dictionaries/80no_leadership_index/00-base.xml b/tests/dictionaries/80no_leadership_index/00-base.xml
new file mode 100644
index 00000000..dcfb3023
--- /dev/null
+++ b/tests/dictionaries/80no_leadership_index/00-base.xml
@@ -0,0 +1,13 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<rougail>
+    <variables>
+        <variable name="my_variable"/>
+    </variables>
+
+    <constraints>
+        <fill name="calc_val">
+            <param type="index"/>
+            <target>my_variable</target>
+        </fill>
+    </constraints>
+</rougail>
diff --git a/tests/dictionaries/80no_leadership_index/__init__.py b/tests/dictionaries/80no_leadership_index/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/dictionaries/80no_leadership_index/errno_60 b/tests/dictionaries/80no_leadership_index/errno_60
new file mode 100644
index 00000000..e69de29b