diff --git a/src/main.cpp b/src/main.cpp
index 63ef2300..fda59d8e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -449,7 +449,7 @@ void setup() {
     ESP_LOGI(TAG, "BME sensor initialized");
   else {
     ESP_LOGE(TAG, "BME sensor could not be initialized");
-    cfg.payloadmask &= ~MEMS_DATA; // switch off transmit of BME data
+    cfg.payloadmask &= (uint8_t)~MEMS_DATA; // switch off transmit of BME data
   }
 #endif
 
diff --git a/src/rcommand.cpp b/src/rcommand.cpp
index c69a5fd3..08c7618d 100644
--- a/src/rcommand.cpp
+++ b/src/rcommand.cpp
@@ -401,9 +401,9 @@ void set_enscount(uint8_t val[]) {
   ESP_LOGI(TAG, "Remote command: set ENS_COUNT to %s", val[0] ? "on" : "off");
   cfg.enscount = val[0] ? 1 : 0;
   if (val[0])
-    cfg.payloadmask |= SENSOR1_DATA;
+    cfg.payloadmask |= (uint8_t)SENSOR1_DATA;
   else
-    cfg.payloadmask &= ~SENSOR1_DATA;
+    cfg.payloadmask &= (uint8_t)~SENSOR1_DATA;
 }
 
 void set_loadconfig(uint8_t val[]) {