diff --git a/apps/speed.c b/apps/speed.c
index 9ab1648b2cf0a58947b3aea7f1061c22411f1bc6..4b3da8758890bfdcb111df116c3a214254a99022 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -374,6 +374,7 @@ OPTIONS speed_options[] = {
 #ifndef OPENSSL_NO_ENGINE
     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
 #endif
+    {NULL},
 };
 
 #define D_MD2           0