diff --git a/options.conf.d/python-abis.conf b/options.conf.d/python-abis.conf
index b8a7f21..88dbbd6 100644
--- a/options.conf.d/python-abis.conf
+++ b/options.conf.d/python-abis.conf
@@ -17,6 +17,7 @@ app-crypt/volume_key python_abis: -* 2.7
 base/libblockdev python_abis: -* 2.7
 games-board/pysolfc python_abis: -* 2.7
 dev-libs/gexiv2 python_abis: -* 3.6
+app-doc/gtk-doc-autotools python_abis: -* 3.6
 
 # inox
 app-speech/speechd python_abis: -* 3.6