diff --git a/scripts/config.py b/scripts/config.py
index 0ab1e39..24c9538 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -161,8 +161,16 @@
     return section.endswith('support') or section.endswith('modules')
 
 def realfull_adapter(_name, active, section):
-    """Activate all symbols found in the system and feature sections."""
-    if not is_full_section(section):
+    """Activate all symbols found in the global and boolean feature sections.
+
+    This is intended for building the documentation, including the
+    documentation of settings that are activated by defining an optional
+    preprocessor macro.
+
+    Do not activate definitions in the section containing symbols that are
+    supposed to be defined and documented in their own module.
+    """
+    if section == 'Module configuration options':
         return active
     return True