diff --git a/crypto/ec/ec.h b/crypto/ec/ec.h
index b89add60e0..2d36dd5ea7 100644
--- a/crypto/ec/ec.h
+++ b/crypto/ec/ec.h
@@ -715,7 +715,8 @@ int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
                                    unsigned int *k2, unsigned int *k3);
 # endif
 
-# define OPENSSL_EC_NAMED_CURVE  0x001
+# define OPENSSL_EC_EXPLICIT_CURVE  0x000
+# define OPENSSL_EC_NAMED_CURVE     0x001
 
 typedef struct ecpk_parameters_st ECPKPARAMETERS;
 
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index cc3dd35077..2dcdb40168 100644
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -106,7 +106,7 @@ EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
         goto err;
 
     ret->curve_name = 0;
-    ret->asn1_flag = 0;
+    ret->asn1_flag = OPENSSL_EC_NAMED_CURVE;
     ret->asn1_form = POINT_CONVERSION_UNCOMPRESSED;
 
     ret->seed = NULL;