diff --git a/docs/libnm-util/Makefile.am b/docs/libnm-util/Makefile.am
index 0b7b95cb32..59a9ef6b26 100644
--- a/docs/libnm-util/Makefile.am
+++ b/docs/libnm-util/Makefile.am
@@ -13,7 +13,7 @@ DOC_MAIN_SGML_FILE=$(DOC_MODULE)-docs.sgml
 DOC_SOURCE_DIR=../../libnm-util
 
 # Extra options to supply to gtkdoc-scan.
-SCAN_OPTIONS=--rebuild-types
+SCAN_OPTIONS=--rebuild-types --rebuild-sections
 
 # Extra options to supply to gtkdoc-scangobj.
 SCANGOBJ_OPTIONS=--type-init-func 'g_type_init();'