diff --git a/crypto/openssl/crypto/dh/dh_key.c b/crypto/openssl/crypto/dh/dh_key.c
index cb5abdcf47c4..37a2c1bca23f 100644
--- a/crypto/openssl/crypto/dh/dh_key.c
+++ b/crypto/openssl/crypto/dh/dh_key.c
@@ -173,7 +173,7 @@ static int generate_key(DH *dh)
 
 static int compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
 	{
-	BN_CTX *ctx;
+	BN_CTX *ctx=NULL;
 	BN_MONT_CTX *mont=NULL;
 	BIGNUM *tmp;
 	int ret= -1;