diff --git a/contrib/src/main.mak b/contrib/src/main.mak
index b2c0feddb61c2021ef793996c8c3b90ce06f74fb..f784e30ee3652271317908ef76d505a6eecb95eb 100644
--- a/contrib/src/main.mak
+++ b/contrib/src/main.mak
@@ -389,7 +389,7 @@ UPDATE_AUTOCONFIG = for dir in $(AUTOMAKE_DATA_DIRS); do \
 ifdef HAVE_DARWIN_OS
 AUTORECONF = AUTOPOINT=true autoreconf
 else
-AUTORECONF = autoreconf
+AUTORECONF = GTKDOCIZE=true autoreconf
 endif
 RECONF = mkdir -p -- $(PREFIX)/share/aclocal && \
 	cd $< && $(AUTORECONF) -fiv $(ACLOCAL_AMFLAGS)