diff --git a/Makefile.am b/Makefile.am
index c3e020b..67d3899 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,6 +2,8 @@ AUTOMAKE_OPTIONS = dist-bzip2
 SUBDIRS = src data tests pam doc po
 EXTRA_DIST = TODO intltool-extract.in intltool-merge.in intltool-update.in
 
+DISTCHECK_CONFIGURE_FLAGS = --enable-gtk-doc
+
 all: check create-pot
 
 check: check-translations