diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index 6b1b029d7..e334e506f 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -422,6 +422,8 @@ err:
 	BN_CTX_end(ctx);
 	if (in_ctx == NULL)
 		BN_CTX_free(ctx);
+	if(rsa->e == NULL)
+		BN_free(e);
 
 	return ret;
 }