diff --git a/Makefile.pre.in b/Makefile.pre.in
index 580e574ccfbb79a..35f254508579bf0 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -2142,6 +2142,7 @@ TESTSUBDIRS=	idlelib/idle_test \
 		test \
 		test/audiodata \
 		test/certdata \
+		test/certdata/capath \
 		test/cjkencodings \
 		test/crashers \
 		test/data \