diff --git a/templates/postgresql.conf.erb b/templates/postgresql.conf.erb
index 2334501..010b540 100644
--- a/templates/postgresql.conf.erb
+++ b/templates/postgresql.conf.erb
@@ -706,6 +706,14 @@ default_text_search_config = 'pg_catalog.english'
 
 # - Shared Library Preloading -
 #shared_preload_libraries = '' # requires restart
+
+<% if @pl_manage_extensions == true -%>
+shared_preload_libraries = <%= @pl_reqpackages_extensions %>
+<% else -%>
+# shared_preload_libraries = ''
+<% end -%>
+
+
 #local_preload_libraries = ''
 #session_preload_libraries = ''
 #jit_provider = 'llvmjit'		# JIT library to use