diff --git a/Makefile.am b/Makefile.am
index 67475f37dafb6c62d6d85c9131711d5f1d5ae26b..35d894604acbaa22aff4b9a87300ff80f12dc372 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -427,6 +427,7 @@ HPCEXCL = --exclude Main \
 	--exclude Ganeti.HTools.QC \
 	--exclude Ganeti.THH \
 	--exclude Ganeti.Version \
+	--exclude Test.Ganeti.Attoparsec \
 	--exclude Test.Ganeti.TestCommon \
 	--exclude Test.Ganeti.TestHTools \
 	--exclude Test.Ganeti.TestHelper \