diff --git a/tests/incr01.at b/tests/incr01.at
index 9d0a03ee..6a94e3a5 100644
--- a/tests/incr01.at
+++ b/tests/incr01.at
@@ -48,7 +48,7 @@ separator
 directory/
 tar: Deleting `directory/bar'
 ],
-[],[],[],[gnu, oldgnu])
+[],[],[],[gnu, oldgnu, posix])
 
 AT_CLEANUP
 
diff --git a/tests/incremental.at b/tests/incremental.at
index 23d0c403..664ab389 100644
--- a/tests/incremental.at
+++ b/tests/incremental.at
@@ -55,6 +55,6 @@ separator
 structure/
 structure/file
 ],
-[],[],[],[gnu,oldgnu])
+[],[],[],[gnu,oldgnu,posix])
 
 AT_CLEANUP