diff --git a/tests/data/Makefile.am b/tests/data/Makefile.am
index f23234021..d601adb8c 100644
--- a/tests/data/Makefile.am
+++ b/tests/data/Makefile.am
@@ -66,6 +66,6 @@ command33.txt  extra33.txt    name33.txt     prot33.txt     reply33.txt \
 command34.txt prot34.txt reply340001.txt name34.txt reply34.txt \
 command35.txt  name35.txt     prot35.txt     reply35.txt \
 command36.txt  error36.txt  name36.txt  reply36.txt \
-command37.txt  name37.txt  prot37.txt  reply37.txt \
+command37.txt  name37.txt  prot37.txt  reply37.txt stunnel.pem \
 command38.txt prot38.txt reply380001.txt name38.txt reply38.txt \
 command39.txt prot39.txt reply390001.txt name39.txt reply39.txt reply390002.txt