diff --git a/src/eac.c b/src/eac.c
index d53d1c7..c41dd05 100644
--- a/src/eac.c
+++ b/src/eac.c
@@ -201,6 +201,7 @@ int sm_wrap() {
     if (apdu.ne > 0) {
         apdu.ne = res_APDU_size;
     }
+    set_res_sw(0x90, 0x00);
     return CCID_OK;
 }