diff --git a/_P006_BMP085.ino b/_P006_BMP085.ino
index eb328ceb5..1059c8dbd 100644
--- a/_P006_BMP085.ino
+++ b/_P006_BMP085.ino
@@ -283,7 +283,7 @@ boolean Plugin_006_bmp085_write8(uint8_t a, uint8_t d)
 }
 
 /*********************************************************************/
-float Plugin_006_pressureElevation(float atmospheric, float altitude) {
+float Plugin_006_pressureElevation(float atmospheric, int altitude) {
 /*********************************************************************/
   return atmospheric / pow(1.0 - (altitude/44330.0), 5.255);
 }
diff --git a/_P028_BME280.ino b/_P028_BME280.ino
index c2219305c..d398ee3ed 100644
--- a/_P028_BME280.ino
+++ b/_P028_BME280.ino
@@ -443,7 +443,7 @@ float Plugin_028_readAltitude(float seaLevel)
 //**************************************************************************/
 // MSL pressure formula
 //**************************************************************************/
-float Plugin_028_pressureElevation(float atmospheric, float altitude) {
+float Plugin_028_pressureElevation(float atmospheric, int altitude) {
   return atmospheric / pow(1.0 - (altitude/44330.0), 5.255);
 }
 
diff --git a/_P030_BMP280.ino b/_P030_BMP280.ino
index 0d7bc498e..0f1da117c 100644
--- a/_P030_BMP280.ino
+++ b/_P030_BMP280.ino
@@ -407,7 +407,7 @@ float Plugin_030_readAltitude(float seaLevel)
 //**************************************************************************/
 // MSL pressure formula
 //**************************************************************************/
-float Plugin_030_pressureElevation(float atmospheric, float altitude) {
+float Plugin_030_pressureElevation(float atmospheric, int altitude) {
   return atmospheric / pow(1.0 - (altitude/44330.0), 5.255);
 }
 
diff --git a/_P032_MS5611.ino b/_P032_MS5611.ino
index fe51e18de..77e64e6c9 100644
--- a/_P032_MS5611.ino
+++ b/_P032_MS5611.ino
@@ -269,7 +269,7 @@ void Plugin_032_readout() {
 //**************************************************************************/
 // MSL pressure formula
 //**************************************************************************/
-float Plugin_032_pressureElevation(double atmospheric, float altitude) {
+double Plugin_032_pressureElevation(double atmospheric, int altitude) {
   return atmospheric / pow(1.0 - (altitude/44330.0), 5.255);
 }