diff --git a/armsrc/Standalone/hf_cardhopper.c b/armsrc/Standalone/hf_cardhopper.c
index d199dcdab..8baa511d2 100644
--- a/armsrc/Standalone/hf_cardhopper.c
+++ b/armsrc/Standalone/hf_cardhopper.c
@@ -250,7 +250,7 @@ static void become_card(void) {
     while (1) {
         WDT_HIT();
 
-        if (!GetIso14443aCommandFromReaderInterruptible(fromReaderDat, sizeof(fromReaderDat), parity, &fromReaderLen)) {
+        if (GetIso14443aCommandFromReaderInterruptible(fromReaderDat, sizeof(fromReaderDat), parity, &fromReaderLen) == false) {
             if (cardhopper_data_available()) {
                 read_packet(rx);
                 if (memcmp(magicRSRT, rx->dat, sizeof(magicRSRT)) == 0) {
diff --git a/armsrc/Standalone/hf_emvpng.c b/armsrc/Standalone/hf_emvpng.c
index 26565a551..f80401ec6 100644
--- a/armsrc/Standalone/hf_emvpng.c
+++ b/armsrc/Standalone/hf_emvpng.c
@@ -403,7 +403,7 @@ void RunMod(void) {
             for (;;) {
                 LED_B_OFF();
                 // clean receive command buffer
-                if (!GetIso14443aCommandFromReader(receivedCmd, receivedCmdPar, &len)) {
+                if (GetIso14443aCommandFromReader(receivedCmd, sizeof(receivedCmd), receivedCmdPar, &len) == false) {
                     DbpString(_YELLOW_("!!") "Emulator stopped");
                     retval = PM3_EOPABORTED;
                     break;
diff --git a/armsrc/Standalone/hf_tcprst.c b/armsrc/Standalone/hf_tcprst.c
index d8ced29d4..58fb00163 100644
--- a/armsrc/Standalone/hf_tcprst.c
+++ b/armsrc/Standalone/hf_tcprst.c
@@ -216,7 +216,7 @@ void RunMod(void) {
             while (!gotkey) {
                 LED_B_OFF();
                 // Clean receive command buffer
-                if (!GetIso14443aCommandFromReader(receivedCmd, sizeof(receivedCmd), receivedCmdPar, &len)) {
+                if (GetIso14443aCommandFromReader(receivedCmd, sizeof(receivedCmd), receivedCmdPar, &len) == false) {
                     DbpString(_YELLOW_("!!") "Emulator stopped");
                     retval = PM3_EOPABORTED;
                     break;
@@ -394,7 +394,7 @@ void RunMod(void) {
             for (;;) {
                 LED_B_OFF();
                 // Clean receive command buffer
-                if (!GetIso14443aCommandFromReader(receivedCmd, sizeof(receivedCmd), receivedCmdPar, &len)) {
+                if (GetIso14443aCommandFromReader(receivedCmd, sizeof(receivedCmd), receivedCmdPar, &len) == false) {
                     DbpString(_YELLOW_("!!") "Emulator stopped");
                     retval = PM3_EOPABORTED;
                     break;
diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index ba0196ce9..adf2bd7de 100644
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -2951,7 +2951,7 @@ void iso14443a_antifuzz(uint32_t flags) {
         WDT_HIT();
 
         // Clean receive command buffer
-        if (!GetIso14443aCommandFromReader(received, MAX_FRAME_SIZE, receivedPar, &len)) {
+        if (GetIso14443aCommandFromReader(received, MAX_FRAME_SIZE, receivedPar, &len) == false) {
             Dbprintf("Anti-fuzz stopped. Trace length: %d ", BigBuf_get_traceLen());
             break;
         }