diff --git a/lib/hcrypto/rsa.h b/lib/hcrypto/rsa.h
index a793c26af..3fa82fce7 100644
--- a/lib/hcrypto/rsa.h
+++ b/lib/hcrypto/rsa.h
@@ -41,6 +41,7 @@
 /* symbol renaming */
 #define RSA_null_method hc_RSA_null_method
 #define RSA_imath_method hc_RSA_imath_method
+#define RSA_gmp_method hc_RSA_gmp_method
 #define RSA_new hc_RSA_new
 #define RSA_new_method hc_RSA_new_method
 #define RSA_free hc_RSA_free
@@ -133,6 +134,7 @@ struct RSA {
 
 const RSA_METHOD *RSA_null_method(void);
 const RSA_METHOD *RSA_imath_method(void);
+const RSA_METHOD *RSA_gmp_method(void);
 
 /*
  *