diff --git a/client/src/cmddata.c b/client/src/cmddata.c
index 74273921f..2208a34d4 100644
--- a/client/src/cmddata.c
+++ b/client/src/cmddata.c
@@ -1758,8 +1758,8 @@ int getSamplesEx(uint32_t start, uint32_t end, bool verbose, bool ignore_lf_conf
     if (verbose)
         PrintAndLogEx(INFO, "Reading " _YELLOW_("%u") " bytes from device memory", n);
 
-    PacketResponseNG response;
-    if (!GetFromDevice(BIG_BUF, got, n, start, NULL, 0, &response, 10000, true)) {
+    PacketResponseNG resp;
+    if (!GetFromDevice(BIG_BUF, got, n, start, NULL, 0, &resp, 10000, true)) {
         PrintAndLogEx(WARNING, "timeout while waiting for reply.");
         return PM3_ETIMEOUT;
     }
@@ -1769,8 +1769,8 @@ int getSamplesEx(uint32_t start, uint32_t end, bool verbose, bool ignore_lf_conf
     uint8_t bits_per_sample = 8;
 
     // Old devices without this feature would send 0 at arg[0]
-    if (response.oldarg[0] > 0 && (ignore_lf_config == false)) {
-        sample_config *sc = (sample_config *) response.data.asBytes;
+    if (resp.oldarg[0] > 0 && (ignore_lf_config == false)) {
+        sample_config *sc = (sample_config *) resp.data.asBytes;
         if (verbose) PrintAndLogEx(INFO, "Samples @ " _YELLOW_("%d") " bits/smpl, decimation 1:%d ", sc->bits_per_sample, sc->decimation);
         bits_per_sample = sc->bits_per_sample;
     }
diff --git a/client/src/cmdhf.c b/client/src/cmdhf.c
index b15671272..b5cff4e19 100644
--- a/client/src/cmdhf.c
+++ b/client/src/cmdhf.c
@@ -426,8 +426,8 @@ int handle_hf_plot(void) {
 
     uint8_t buf[FPGA_TRACE_SIZE] = {0};
 
-    PacketResponseNG response;
-    if (GetFromDevice(FPGA_MEM, buf, FPGA_TRACE_SIZE, 0, NULL, 0, &response, 4000, true) == false) {
+    PacketResponseNG resp;
+    if (GetFromDevice(FPGA_MEM, buf, FPGA_TRACE_SIZE, 0, NULL, 0, &resp, 4000, true) == false) {
         PrintAndLogEx(WARNING, "timeout while waiting for reply.");
         return PM3_ETIMEOUT;
     }
diff --git a/client/src/cmdhfmfhard.c b/client/src/cmdhfmfhard.c
index d66b3eb43..3d85a2c60 100644
--- a/client/src/cmdhfmfhard.c
+++ b/client/src/cmdhfmfhard.c
@@ -1562,7 +1562,20 @@ static int acquire_nonces(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_
     float brute_force_depth;
 
     FILE *fnonces = NULL;
-    PacketResponseNG resp;
+
+    // init to ZERO
+    PacketResponseNG resp = { 
+        .cmd = 0,
+        .length = 0,
+        .magic = 0,
+        .status = 0,
+        .crc = 0,        
+        .ng = false,
+    };
+    resp.oldarg[0] = 0;
+    resp.oldarg[1] = 0;    
+    resp.oldarg[2] = 0;
+    memset(resp.data.asBytes, 0, PM3_CMD_DATA_SIZE);
 
     uint8_t write_buf[9];
     char progress_text[80];
diff --git a/client/src/cmdlfhitag.c b/client/src/cmdlfhitag.c
index 7fd58c798..4df9ca4a7 100644
--- a/client/src/cmdlfhitag.c
+++ b/client/src/cmdlfhitag.c
@@ -72,14 +72,14 @@ static int CmdLFHitagList(const char *Cmd) {
     }
 
     // Query for the actual size of the trace
-    PacketResponseNG response;
-    if (!GetFromDevice(BIG_BUF, got, PM3_CMD_DATA_SIZE, 0, NULL, 0, &response, 2500, false)) {
+    PacketResponseNG resp;
+    if (!GetFromDevice(BIG_BUF, got, PM3_CMD_DATA_SIZE, 0, NULL, 0, &resp, 2500, false)) {
         PrintAndLogEx(WARNING, "command execution time out");
         free(got);
         return PM3_ETIMEOUT;
     }
 
-    uint16_t traceLen = response.arg[2];
+    uint16_t traceLen = resp.arg[2];
     if (traceLen > PM3_CMD_DATA_SIZE) {
         uint8_t *p = realloc(got, traceLen);
         if (p == NULL) {
diff --git a/client/src/cmdtrace.c b/client/src/cmdtrace.c
index 0d47d2d7c..7efb8bc35 100644
--- a/client/src/cmdtrace.c
+++ b/client/src/cmdtrace.c
@@ -986,15 +986,15 @@ static int download_trace(void) {
     PrintAndLogEx(INFO, "downloading tracelog data from device");
 
     // Query for the size of the trace,  downloading PM3_CMD_DATA_SIZE
-    PacketResponseNG response;
-    if (!GetFromDevice(BIG_BUF, gs_trace, PM3_CMD_DATA_SIZE, 0, NULL, 0, &response, 4000, true)) {
+    PacketResponseNG resp;
+    if (!GetFromDevice(BIG_BUF, gs_trace, PM3_CMD_DATA_SIZE, 0, NULL, 0, &resp, 4000, true)) {
         PrintAndLogEx(WARNING, "timeout while waiting for reply.");
         free(gs_trace);
         gs_trace = NULL;
         return PM3_ETIMEOUT;
     }
 
-    gs_traceLen = response.oldarg[2];
+    gs_traceLen = resp.oldarg[2];
 
     // if tracelog buffer was larger and we need to download more.
     if (gs_traceLen > PM3_CMD_DATA_SIZE) {