diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c
index 1ec068a4f..de7d9ecd5 100644
--- a/client/cmdlfhid.c
+++ b/client/cmdlfhid.c
@@ -246,7 +246,7 @@ static int CmdHIDDemod(const char *Cmd) {
         }
     }
 
-    PrintAndLogEx(DEBUG, "DEBUG: HID idx: %d, Len: %d, Printing Demod Buffer:", idx, size);
+    PrintAndLogEx(DEBUG, "DEBUG: HID idx: %d, Len: %zu, Printing Demod Buffer:", idx, size);
     if (g_debugMode)
         printDemodBuff();
 
diff --git a/client/mifare/ndef.c b/client/mifare/ndef.c
index f4575c893..946b80b04 100644
--- a/client/mifare/ndef.c
+++ b/client/mifare/ndef.c
@@ -186,7 +186,7 @@ static int ndefDecodeSig(uint8_t *sig, size_t siglen) {
     if (sigURI) {
         size_t intsigurilen = (sig[indx] << 8) + sig[indx + 1];
         indx += 2;
-        PrintAndLogEx(NORMAL, "\tsignature uri [%zu]: %.*s", intsigurilen, intsigurilen, &sig[indx]);
+        PrintAndLogEx(NORMAL, "\tsignature uri [%zu]: %.*s", intsigurilen, (int)intsigurilen, &sig[indx]);
         indx += intsigurilen;
     }