diff --git a/crypto/dh/dhtest.c b/crypto/dh/dhtest.c
index 1346f98f8..d66c28455 100644
--- a/crypto/dh/dhtest.c
+++ b/crypto/dh/dhtest.c
@@ -65,6 +65,7 @@
 #include <openssl/crypto.h>
 #include <openssl/bio.h>
 #include <openssl/bn.h>
+#include <openssl/rand.h>
 
 #ifdef NO_DH
 int main(int argc, char *argv[])