diff --git a/src/libopensc/card-piv.c b/src/libopensc/card-piv.c
index 808c9f63..317cd6a0 100644
--- a/src/libopensc/card-piv.c
+++ b/src/libopensc/card-piv.c
@@ -176,8 +176,10 @@ static struct piv_aid piv_aids[] = {
 };
 
 /* The EC curves supported by PIV */
+#if 0
 static u8 oid_prime256v1[] = {"\x06\x08\x2a\x86\x48\xce\x3d\x03\x01\x07"};
 static u8 oid_secp384r1[] = {"\x06\x05\x2b\x81\x04\x00\x22"};
+#endif
 
 /*
  * Flags in the piv_object: