diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index 3ebde4fd9326946f96125a9a0abe9a78c3c6b5af..53c5092014befdd6f45b17051248b98618b14658 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -62,6 +62,7 @@
 #include <openssl/lhash.h>
 #include <openssl/bn.h>
 #include <openssl/rsa.h>
+#include <openssl/rand.h>
 #ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
 #endif