diff --git a/src/main/openssl.c b/src/main/openssl.c
index 03440a9..12ee605 100644
--- a/src/main/openssl.c
+++ b/src/main/openssl.c
@@ -25,7 +25,7 @@ static pthread_mutex_t *lockv;
 
 static unsigned long threadid_handler(void)
 {
-#if defined (DARWIN) || defined (FREEBSD)
+#if defined (DARWIN) || defined (FREEBSD) || defined (OPENBSD)
 	return (unsigned long)(void *)pthread_self();
 #else
 	return (unsigned long)pthread_self();