diff --git a/scripts/sign-file.c b/scripts/sign-file.c
index 80b7f7f..d912d5a 100755
--- a/scripts/sign-file.c
+++ b/scripts/sign-file.c
@@ -41,7 +41,7 @@
  * signing with anything other than SHA1 - so we're stuck with that if such is
  * the case.
  */
-#if (OPENSSL_VERSION_NUMBER < 0x10000000L || LIBRESSL_VERSION_NUMBER)
+#if OPENSSL_VERSION_NUMBER < 0x10000000L || defined(OPENSSL_NO_CMS)
 #define USE_PKCS7
 #endif
 #ifndef USE_PKCS7