diff --git a/client/src/cmdhfmfdes.c b/client/src/cmdhfmfdes.c
index 679619d10..440cab4c1 100644
--- a/client/src/cmdhfmfdes.c
+++ b/client/src/cmdhfmfdes.c
@@ -5205,6 +5205,7 @@ static int CmdHF14ADesChKeySettings(const char *Cmd) {
         return PM3_ESOFT;
     if (res == 2) {
         PrintAndLogEx(ERR, "Key settings must have 1 byte length");
+        CLIParserFree(ctx);
         return PM3_EINVARG;
     }
 
@@ -5325,7 +5326,7 @@ static int CmdHF14ADesGetKeySettings(const char *Cmd) {
     }
 
     if (verbose)
-        PrintAndLogEx(INFO, "DesfireGetKeySettings[%d]: %s", buflen, sprint_hex(buf, buflen));
+        PrintAndLogEx(INFO, "DesfireGetKeySettings[%zu]: %s", buflen, sprint_hex(buf, buflen));
 
     if (buflen < 2) {
         PrintAndLogEx(ERR, "Command DesfireGetKeySettings returned wrong length: %d", buflen);
@@ -5504,7 +5505,7 @@ static int CmdHF14ADesGetAppNames(const char *Cmd) {
     if (buflen > 0) {
         PrintAndLogEx(INFO, "----------------------- " _CYAN_("File list") " -----------------------");
         for (int i = 0; i < buflen; i++)
-            PrintAndLogEx(INFO, "AID: %06x ISO file id: %02x%02x ISO DF name[%" PRIu32 "]: %s",
+            PrintAndLogEx(INFO, "AID: %06x ISO file id: %02x%02x ISO DF name[%zu]: %s",
                           DesfireAIDByteToUint(&buf[i * 24 + 1]),
                           buf[i * 24 + 1 + 3], buf[i * 24 + 1 + 4],
                           strlen((char *)&buf[i * 24 + 1 + 5]),
diff --git a/client/src/mifare/desfirecore.c b/client/src/mifare/desfirecore.c
index 26c21494f..ddcc513eb 100644
--- a/client/src/mifare/desfirecore.c
+++ b/client/src/mifare/desfirecore.c
@@ -225,7 +225,7 @@ void DesfirePrintContext(DesfireContext *ctx) {
                       sprint_hex(ctx->sessionKeyMAC, desfire_get_key_length(ctx->keyType)));
         PrintAndLogEx(INFO, "    ENC: %s",
                       sprint_hex(ctx->sessionKeyEnc, desfire_get_key_length(ctx->keyType)));
-        PrintAndLogEx(INFO, "    IV [%d]: %s",
+        PrintAndLogEx(INFO, "    IV [%zu]: %s",
                       desfire_get_key_block_length(ctx->keyType),
                       sprint_hex(ctx->IV, desfire_get_key_block_length(ctx->keyType)));
 
diff --git a/client/src/mifare/desfirecrypto.c b/client/src/mifare/desfirecrypto.c
index d3955f92d..11b29b9db 100644
--- a/client/src/mifare/desfirecrypto.c
+++ b/client/src/mifare/desfirecrypto.c
@@ -118,7 +118,7 @@ size_t DesfireSearchCRCPos(uint8_t *data, size_t datalen, uint8_t respcode, uint
             break;
     crcpos++; // crc may be 0x00000000 or 0x0000
     if (crcpos < crclen) {
-        PrintAndLogEx(WARNING, "No space for crc. pos: %d", crcpos);
+        PrintAndLogEx(WARNING, "No space for crc. pos: %zu", crcpos);
         return 0;
     }