diff --git a/legacy/firmware/coins.c b/legacy/firmware/coins.c
index dcd4c0de3..7def8d9ff 100644
--- a/legacy/firmware/coins.c
+++ b/legacy/firmware/coins.c
@@ -43,6 +43,12 @@ const CoinInfo *coinByAddressType(uint32_t address_type) {
 }
 
 const CoinInfo *coinBySlip44(uint32_t coin_type) {
+  if (coin_type == SLIP44_TESTNET) {
+    // The slip44 coin type is the same for all testnets, so we return the
+    // Bitcoin Testnet.
+    return coinByName("Testnet");
+  }
+
   for (int i = 0; i < COINS_COUNT; i++) {
     if (coin_type == coins[i].coin_type) {
       return &(coins[i]);
diff --git a/legacy/firmware/coins.h b/legacy/firmware/coins.h
index ba9219d22..b582bc35e 100644
--- a/legacy/firmware/coins.h
+++ b/legacy/firmware/coins.h
@@ -59,6 +59,12 @@ typedef struct _CoinInfo {
 
 #include "coin_info.h"
 
+// SLIP-44 hardened coin type for Bitcoin
+#define SLIP44_BITCOIN 0x80000000
+
+// SLIP-44 hardened coin type for all Testnet coins
+#define SLIP44_TESTNET 0x80000001
+
 const CoinInfo *coinByName(const char *name);
 const CoinInfo *coinByAddressType(uint32_t address_type);
 const CoinInfo *coinBySlip44(uint32_t coin_type);
diff --git a/legacy/firmware/crypto.c b/legacy/firmware/crypto.c
index 9b93041c6..043f5d963 100644
--- a/legacy/firmware/crypto.c
+++ b/legacy/firmware/crypto.c
@@ -37,12 +37,6 @@
 #define PATH_MAX_CHANGE 1
 #define PATH_MAX_ADDRESS_INDEX 1000000
 
-// SLIP-44 hardened coin type for Bitcoin
-#define SLIP44_BITCOIN 0x80000000
-
-// SLIP-44 hardened coin type for all Testnet coins
-#define SLIP44_TESTNET 0x80000001
-
 uint32_t ser_length(uint32_t len, uint8_t *out) {
   if (len < 253) {
     out[0] = len & 0xFF;