diff --git a/src/wallet.c b/src/wallet.c
index d890ffe9..b95152e6 100644
--- a/src/wallet.c
+++ b/src/wallet.c
@@ -291,14 +291,14 @@ int wallet_generate_key(HDNode *node, const char *keypath, const uint8_t *privke
             idx != (BIP44_PURPOSE_P2WPKH_P2SH + (BIP44_PURPOSE_HARDENED ? BIP44_PRIME : 0))) {
         return DBB_WARN_KEYPATH;
     }
-
+    // get coin type and do not enforce value checking, coin type is application specific and business logic oriented.
+    // it could be another coin or could be a self-sovereign digital identity relying on DPKI for example
     idx = keypath_array[BIP44_LEVEL_COIN_TYPE];
-    if (idx != (BIP44_COIN_TYPE_BTC + (BIP44_COIN_TYPE_HARDENED ? BIP44_PRIME : 0)) &&
-            idx != (BIP44_COIN_TYPE_LTC + (BIP44_COIN_TYPE_HARDENED ? BIP44_PRIME : 0)) &&
-            idx != (BIP44_COIN_TYPE_TESTNET + (BIP44_COIN_TYPE_HARDENED ? BIP44_PRIME : 0))) {
+    // if hardening is assumed on cointype check to ensure prime bit is set.
+    if(BIP44_COIN_TYPE_HARDENED && (idx & BIP44_PRIME) == 0){
         return DBB_WARN_KEYPATH;
-    }
-
+    } 
+    
     idx = keypath_array[BIP44_LEVEL_ACCOUNT];
     if (idx > (BIP44_ACCOUNT_MAX + (BIP44_ACCOUNT_HARDENED ? BIP44_PRIME : 0)) ||
             idx < (BIP44_ACCOUNT_HARDENED ? BIP44_PRIME : 0)) {
diff --git a/tests/tests_api.c b/tests/tests_api.c
index 147a9e51..55ff00f5 100644
--- a/tests/tests_api.c
+++ b/tests/tests_api.c
@@ -517,6 +517,18 @@ static void tests_seed_xpub_backup(void)
     ASSERT_REPORT_HAS_NOT(flag_msg(DBB_WARN_KEYPATH));
     ASSERT_REPORT_HAS(cmd_str(CMD_echo));
 
+    // AUX coin type just use random number for coin type, should be accepted
+    snprintf(kp, sizeof(kp), "m/%i%s/%i%s/%i%s/%i%s/%i%s",
+             BIP44_PURPOSE_P2WPKH, BIP44_PURPOSE_HARDENED ? "p" : "",
+             BIP44_COIN_TYPE_BTC+123, BIP44_COIN_TYPE_HARDENED ? "p" : "",
+             BIP44_ACCOUNT_MAX, BIP44_ACCOUNT_HARDENED ? "p" : "",
+             BIP44_CHANGE_MAX, BIP44_CHANGE_HARDENED ? "p" : "",
+             BIP44_ADDRESS_MAX, BIP44_ADDRESS_HARDENED ? "p" : "");
+    api_format_send_cmd(cmd_str(CMD_xpub), kp, KEY_STANDARD);
+    ASSERT_REPORT_HAS("\"xpub\":");
+    ASSERT_REPORT_HAS_NOT(flag_msg(DBB_WARN_KEYPATH));
+    ASSERT_REPORT_HAS(cmd_str(CMD_echo));
+
     // TESTNET
     snprintf(kp, sizeof(kp), "m/%i%s/%i%s/%i%s/%i%s/%i%s",
              BIP44_PURPOSE_P2PKH, BIP44_PURPOSE_HARDENED ? "p" : "",