diff --git a/libraries/libgksu/libgksu.SlackBuild b/libraries/libgksu/libgksu.SlackBuild
index 6bdbbe3bb9..994ea9b76f 100644
--- a/libraries/libgksu/libgksu.SlackBuild
+++ b/libraries/libgksu/libgksu.SlackBuild
@@ -99,6 +99,7 @@ CXXFLAGS="$SLKCFLAGS" \
   --disable-schemas-install \
   --enable-shared \
   --disable-static \
+  --disable-gtk-doc \
   --build=$ARCH-slackware-linux
 
 make