diff --git a/src/main/fc/fc_msp.c b/src/main/fc/fc_msp.c
index 750b5bdbff9..5a53e451044 100644
--- a/src/main/fc/fc_msp.c
+++ b/src/main/fc/fc_msp.c
@@ -2474,9 +2474,9 @@ static mspResult_e mspFcProcessInCommand(uint16_t cmdMSP, sbuf_t *src)
             } else {
                 DISABLE_STATE(GPS_FIX);
             }
-            gpsSol.flags.validVelNE = 0;
-            gpsSol.flags.validVelD = 0;
-            gpsSol.flags.validEPE = 0;
+            gpsSol.flags.validVelNE = false;
+            gpsSol.flags.validVelD = false;
+            gpsSol.flags.validEPE = false;
             gpsSol.numSat = sbufReadU8(src);
             gpsSol.llh.lat = sbufReadU32(src);
             gpsSol.llh.lon = sbufReadU32(src);
@@ -3444,9 +3444,9 @@ bool mspFCProcessInOutCommand(uint16_t cmdMSP, sbuf_t *dst, sbuf_t *src, mspResu
 					gpsSol.numSat = sbufReadU8(src);
 
 					if (gpsSol.fixType != GPS_NO_FIX) {
-						gpsSol.flags.validVelNE = 1;
-						gpsSol.flags.validVelD = 1;
-						gpsSol.flags.validEPE = 1;
+						gpsSol.flags.validVelNE = true;
+						gpsSol.flags.validVelD = true;
+						gpsSol.flags.validEPE = true;
 
 						gpsSol.llh.lat = sbufReadU32(src);
 						gpsSol.llh.lon = sbufReadU32(src);
diff --git a/src/main/io/gps.c b/src/main/io/gps.c
index 779e880c6c5..7c2fc24e54e 100755
--- a/src/main/io/gps.c
+++ b/src/main/io/gps.c
@@ -145,9 +145,9 @@ void gpsProcessNewSolutionData(void)
     }
     else {
         /* When no fix available - reset flags as well */
-        gpsSol.flags.validVelNE = 0;
-        gpsSol.flags.validVelD = 0;
-        gpsSol.flags.validEPE = 0;
+        gpsSol.flags.validVelNE = false;
+        gpsSol.flags.validVelD = false;
+        gpsSol.flags.validEPE = false;
         DISABLE_STATE(GPS_FIX);
     }
 
@@ -180,11 +180,11 @@ static void gpsResetSolution(void)
 
     gpsSol.fixType = GPS_NO_FIX;
 
-    gpsSol.flags.validVelNE = 0;
-    gpsSol.flags.validVelD = 0;
-    gpsSol.flags.validMag = 0;
-    gpsSol.flags.validEPE = 0;
-    gpsSol.flags.validTime = 0;
+    gpsSol.flags.validVelNE = false;
+    gpsSol.flags.validVelD = false;
+    gpsSol.flags.validMag = false;
+    gpsSol.flags.validEPE = false;
+    gpsSol.flags.validTime = false;
 }
 
 void gpsPreInit(void)
@@ -292,10 +292,10 @@ static bool gpsFakeGPSUpdate(void)
         gpsSol.velNED[X] = speed * cos_approx(DECIDEGREES_TO_RADIANS(FAKE_GPS_GROUND_COURSE_DECIDEGREES));
         gpsSol.velNED[Y] = speed * sin_approx(DECIDEGREES_TO_RADIANS(FAKE_GPS_GROUND_COURSE_DECIDEGREES));
         gpsSol.velNED[Z] = 0;
-        gpsSol.flags.validVelNE = 1;
-        gpsSol.flags.validVelD = 1;
-        gpsSol.flags.validEPE = 1;
-        gpsSol.flags.validTime = 1;
+        gpsSol.flags.validVelNE = true;
+        gpsSol.flags.validVelD = true;
+        gpsSol.flags.validEPE = true;
+        gpsSol.flags.validTime = true;
         gpsSol.eph = 100;
         gpsSol.epv = 100;
         gpsSol.time.year = 1983;
diff --git a/src/main/io/gps_msp.c b/src/main/io/gps_msp.c
index ce33828fb68..8eafb2dff19 100644
--- a/src/main/io/gps_msp.c
+++ b/src/main/io/gps_msp.c
@@ -94,9 +94,9 @@ void mspGPSReceiveNewData(const uint8_t * bufferPtr)
     gpsSol.eph = gpsConstrainEPE(pkt->horizontalPosAccuracy / 10);
     gpsSol.epv = gpsConstrainEPE(pkt->verticalPosAccuracy / 10);
     gpsSol.hdop = gpsConstrainHDOP(pkt->hdop);
-    gpsSol.flags.validVelNE = 1;
-    gpsSol.flags.validVelD = 1;
-    gpsSol.flags.validEPE = 1;
+    gpsSol.flags.validVelNE = true;
+    gpsSol.flags.validVelD = true;
+    gpsSol.flags.validEPE = true;
 
     gpsSol.time.year   = pkt->year;
     gpsSol.time.month  = pkt->month;
diff --git a/src/main/io/gps_nmea.c b/src/main/io/gps_nmea.c
index a7112bab301..c5c3b420db7 100755
--- a/src/main/io/gps_nmea.c
+++ b/src/main/io/gps_nmea.c
@@ -212,15 +212,15 @@ static bool gpsNewFrameNMEA(char c)
                             gpsSol.hdop = gpsConstrainHDOP(gps_Msg.hdop);
                             gpsSol.eph = gpsConstrainEPE(gps_Msg.hdop * GPS_HDOP_TO_EPH_MULTIPLIER);
                             gpsSol.epv = gpsConstrainEPE(gps_Msg.hdop * GPS_HDOP_TO_EPH_MULTIPLIER);
-                            gpsSol.flags.validEPE = 0;
+                            gpsSol.flags.validEPE = false;
                         }
                         else {
                             gpsSol.fixType = GPS_NO_FIX;
                         }
 
                         // NMEA does not report VELNED
-                        gpsSol.flags.validVelNE = 0;
-                        gpsSol.flags.validVelD = 0;
+                        gpsSol.flags.validVelNE = false;
+                        gpsSol.flags.validVelD = false;
                         break;
                     case FRAME_RMC:
                         gpsSol.groundSpeed = gps_Msg.speed;
@@ -235,10 +235,10 @@ static bool gpsNewFrameNMEA(char c)
                             gpsSol.time.minutes = (gps_Msg.time / 10000) % 100;
                             gpsSol.time.seconds = (gps_Msg.time / 100) % 100;
                             gpsSol.time.millis = (gps_Msg.time & 100) * 10;
-                            gpsSol.flags.validTime = 1;
+                            gpsSol.flags.validTime = true;
                         }
                         else {
-                            gpsSol.flags.validTime = 0;
+                            gpsSol.flags.validTime = false;
                         }
 
                         break;
@@ -276,8 +276,8 @@ STATIC_PROTOTHREAD(gpsProtocolReceiverThread)
         while (serialRxBytesWaiting(gpsState.gpsPort)) {
             uint8_t newChar = serialRead(gpsState.gpsPort);
             if (gpsNewFrameNMEA(newChar)) {
-                gpsSol.flags.validVelNE = 0;
-                gpsSol.flags.validVelD = 0;
+                gpsSol.flags.validVelNE = false;
+                gpsSol.flags.validVelD = false;
                 ptSemaphoreSignal(semNewDataReady);
                 break;
             }
diff --git a/src/main/io/gps_ublox.c b/src/main/io/gps_ublox.c
index 429f37756f2..330cb2b75fc 100755
--- a/src/main/io/gps_ublox.c
+++ b/src/main/io/gps_ublox.c
@@ -609,7 +609,7 @@ static bool gpsParceFrameUBLOX(void)
         gpsSol.llh.alt = _buffer.posllh.altitude_msl / 10;  //alt in cm
         gpsSol.eph = gpsConstrainEPE(_buffer.posllh.horizontal_accuracy / 10);
         gpsSol.epv = gpsConstrainEPE(_buffer.posllh.vertical_accuracy / 10);
-        gpsSol.flags.validEPE = 1;
+        gpsSol.flags.validEPE = true;
         if (next_fix_type != GPS_NO_FIX)
             gpsSol.fixType = next_fix_type;
         _new_position = true;
@@ -632,8 +632,8 @@ static bool gpsParceFrameUBLOX(void)
         gpsSol.velNED[X] = _buffer.velned.ned_north;
         gpsSol.velNED[Y] = _buffer.velned.ned_east;
         gpsSol.velNED[Z] = _buffer.velned.ned_down;
-        gpsSol.flags.validVelNE = 1;
-        gpsSol.flags.validVelD = 1;
+        gpsSol.flags.validVelNE = true;
+        gpsSol.flags.validVelD = true;
         _new_speed = true;
         break;
     case MSG_TIMEUTC:
@@ -646,9 +646,9 @@ static bool gpsParceFrameUBLOX(void)
             gpsSol.time.seconds = _buffer.timeutc.sec;
             gpsSol.time.millis = _buffer.timeutc.nano / (1000*1000);
 
-            gpsSol.flags.validTime = 1;
+            gpsSol.flags.validTime = true;
         } else {
-            gpsSol.flags.validTime = 0;
+            gpsSol.flags.validTime = false;
         }
         break;
     case MSG_PVT:
@@ -666,9 +666,9 @@ static bool gpsParceFrameUBLOX(void)
         gpsSol.eph = gpsConstrainEPE(_buffer.pvt.horizontal_accuracy / 10);
         gpsSol.epv = gpsConstrainEPE(_buffer.pvt.vertical_accuracy / 10);
         gpsSol.hdop = gpsConstrainHDOP(_buffer.pvt.position_DOP);
-        gpsSol.flags.validVelNE = 1;
-        gpsSol.flags.validVelD = 1;
-        gpsSol.flags.validEPE = 1;
+        gpsSol.flags.validVelNE = true;
+        gpsSol.flags.validVelD = true;
+        gpsSol.flags.validEPE = true;
 
         if (UBX_VALID_GPS_DATE_TIME(_buffer.pvt.valid)) {
             gpsSol.time.year = _buffer.pvt.year;
@@ -679,9 +679,9 @@ static bool gpsParceFrameUBLOX(void)
             gpsSol.time.seconds = _buffer.pvt.sec;
             gpsSol.time.millis = _buffer.pvt.nano / (1000*1000);
 
-            gpsSol.flags.validTime = 1;
+            gpsSol.flags.validTime = true;
         } else {
-            gpsSol.flags.validTime = 0;
+            gpsSol.flags.validTime = false;
         }
 
         _new_position = true;