diff --git a/Makefile.am b/Makefile.am
index ffc84d4b..e94ed1a6 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,7 +5,7 @@ SUBDIRS = tagmanager scintilla src plugins icons po doc data tests
 AUTOMAKE_OPTIONS =	1.7
 
 ACLOCAL_AMFLAGS = -I m4
-AM_DISTCHECK_CONFIGURE_FLAGS = --enable-api-docs --enable-html-docs
+AM_DISTCHECK_CONFIGURE_FLAGS = --enable-api-docs --enable-html-docs --enable-pdf-docs
 
 WIN32_BUILD_FILES = \
 	geany_private.rc \