diff --git a/src/main/common/utils.h b/src/main/common/utils.h
index e585d96277..468e42f6b0 100644
--- a/src/main/common/utils.h
+++ b/src/main/common/utils.h
@@ -22,6 +22,7 @@
 
 #define ARRAYLEN(x) (sizeof(x) / sizeof((x)[0]))
 #define ARRAYEND(x) (&(x)[ARRAYLEN(x)])
+#define ZERO_FARRAY(a) memset(a, 0, sizeof(a))
 
 #define CONST_CAST(type, value) ((type)(value))
 
@@ -92,9 +93,9 @@ static inline int32_t cmp32(uint32_t a, uint32_t b) { return a-b; }
 #ifdef UNIT_TEST
 // Call memcpy when building unittest - this is easier that asm symbol name mangling (symbols start with _underscore on win32)
 #include <string.h>
-static inline void  memcpy_fn ( void * destination, const void * source, size_t num ) { memcpy(destination, source, num); };
+static inline void  memcpy_fn(void *destination, const void *source, size_t num) { memcpy(destination, source, num); };
 #else
-void * memcpy_fn ( void * destination, const void * source, size_t num ) asm("memcpy");
+void *memcpy_fn(void *destination, const void *source, size_t num) asm("memcpy");
 #endif
 
 #if __GNUC__ > 6
diff --git a/src/main/config/config_streamer_ram.c b/src/main/config/config_streamer_ram.c
index 9a7e8578ab..420e2a0e6c 100644
--- a/src/main/config/config_streamer_ram.c
+++ b/src/main/config/config_streamer_ram.c
@@ -41,7 +41,7 @@ int config_streamer_impl_write_word(config_streamer_t *c, config_streamer_buffer
     }
 
     if (c->address == (uintptr_t)&eepromData[0]) {
-        memset(eepromData, 0, sizeof(eepromData));
+        ZERO_FARRAY(eepromData);
     }
 
     config_streamer_buffer_align_type_t *destAddr = (config_streamer_buffer_align_type_t *)c->address;
diff --git a/src/main/drivers/pwm_output.c b/src/main/drivers/pwm_output.c
index db9e1e3296..7696492bd1 100644
--- a/src/main/drivers/pwm_output.c
+++ b/src/main/drivers/pwm_output.c
@@ -261,7 +261,7 @@ static pwmOutputPort_t * motorConfigDshot(const timerHardware_t * timerHardware,
     // Configure timer DMA
     if (timerPWMConfigChannelDMA(port->tch, port->dmaBuffer, sizeof(port->dmaBuffer[0]), DSHOT_DMA_BUFFER_SIZE)) {
         // Only mark as DSHOT channel if DMA was set successfully
-        memset(port->dmaBuffer, 0, sizeof(port->dmaBuffer));
+        ZERO_FARRAY(port->dmaBuffer);
         port->configured = true;
     }
 
diff --git a/src/main/fc/cli.c b/src/main/fc/cli.c
index 53aad4f83f..70dd3f9e50 100644
--- a/src/main/fc/cli.c
+++ b/src/main/fc/cli.c
@@ -4059,7 +4059,7 @@ void cliProcess(void)
                 bufferIndex = 0;
             }
 
-            memset(cliBuffer, 0, sizeof(cliBuffer));
+            ZERO_FARRAY(cliBuffer);
 
             // 'exit' will reset this flag, so we don't need to print prompt again
             if (!cliMode)
diff --git a/src/main/fc/fc_msp_box.c b/src/main/fc/fc_msp_box.c
index 3577789359..aeb1463164 100644
--- a/src/main/fc/fc_msp_box.c
+++ b/src/main/fc/fc_msp_box.c
@@ -350,7 +350,7 @@ void initActiveBoxIds(void)
 void packBoxModeFlags(boxBitmask_t * mspBoxModeFlags)
 {
     uint8_t activeBoxes[CHECKBOX_ITEM_COUNT];
-    memset(activeBoxes, 0, sizeof(activeBoxes));
+    ZERO_FARRAY(activeBoxes);
 
     // Serialize the flags in the order we delivered them, ignoring BOXNAMES and BOXINDEXES
     // Requires new Multiwii protocol version to fix
diff --git a/src/main/io/vtx_ffpv24g.c b/src/main/io/vtx_ffpv24g.c
index 3cac3acf04..87c29418da 100644
--- a/src/main/io/vtx_ffpv24g.c
+++ b/src/main/io/vtx_ffpv24g.c
@@ -203,7 +203,7 @@ static void vtxProtoSend(uint8_t cmd, const uint8_t * data)
         memcpy(vtxState.sendPkt.data, data, sizeof(vtxState.sendPkt.data));
     }
     else {
-        memset(vtxState.sendPkt.data, 0, sizeof(vtxState.sendPkt.data));
+        ZERO_FARRAY(vtxState.sendPkt.data);
     }
 
     vtxState.sendPkt.checksum = vtxCalcChecksum(&vtxState.sendPkt);
diff --git a/src/main/telemetry/sim.c b/src/main/telemetry/sim.c
index 7fda28cd08..dc88a8c01e 100644
--- a/src/main/telemetry/sim.c
+++ b/src/main/telemetry/sim.c
@@ -346,7 +346,7 @@ static void sendSMS(void)
     uint16_t avgSpeed = lrintf(10 * calculateAverageSpeed());
     uint32_t now = millis();
 
-    memset(pluscode_url, 0, sizeof(pluscode_url));
+    ZERO_FARRAY(pluscode_url);
 
     if (sensors(SENSOR_GPS) && STATE(GPS_FIX)) {
         groundSpeed = gpsSol.groundSpeed / 100;
diff --git a/src/test/unit/bitarray_unittest.cc b/src/test/unit/bitarray_unittest.cc
index d80f380d82..2c3ae5b813 100644
--- a/src/test/unit/bitarray_unittest.cc
+++ b/src/test/unit/bitarray_unittest.cc
@@ -10,7 +10,7 @@ extern "C" {
 TEST(BitArrayTest, TestGetSet)
 {
     BITARRAY_DECLARE(p, 32);
-    memset(p, 0, sizeof(p));
+    ZERO_FARRAY(p);
 
     bitArraySet(p, 14);
     EXPECT_EQ(bitArrayGet(p, 14), true);
@@ -25,7 +25,7 @@ TEST(BitArrayTest, TestGetSet)
 TEST(BitArrayTest, TestClr)
 {
     BITARRAY_DECLARE(p, 32);
-    memset(p, 0, sizeof(p));
+    ZERO_FARRAY(p);
 
     bitArraySet(p, 31);
     EXPECT_EQ(bitArrayGet(p, 31), true);
@@ -37,8 +37,8 @@ TEST(BitArrayTest, TestClr)
 
 TEST(BitArrayTest, TestFind)
 {
-    BITARRAY_DECLARE(p, 32*4);
-    memset(p, 0, sizeof(p));
+    BITARRAY_DECLARE(p, 32 * 4);
+    ZERO_FARRAY(p);
 
     EXPECT_EQ(bitArrayFindFirstSet(p, 0, sizeof(p)), -1);