diff --git a/ads1210.cpp b/ads1210.cpp
index e4674ba..7139217 100644
--- a/ads1210.cpp
+++ b/ads1210.cpp
@@ -74,9 +74,9 @@ void ADS1210::exec() {
 		//Serial << "DOR4x8:  " << _HEX(res.in[3]) << " " << _HEX(res.in[2]) << " " << _HEX(res.in[1]) << " " << _HEX(res.in[0]) << endl;
 		//Serial << "DOR1x32: " << _HEX(res.out) << endl;
 
-		value = res.out >> SKIPPED_BITS;
+		value = (res.out >> SKIPPED_BITS);
 		
-		uint32_t vMax = V_MAX >> SKIPPED_BITS;
+		uint32_t vMax = (V_MAX >> SKIPPED_BITS);
 		
 		u = (((float)value) / ((float)vMax)) * U_REF;
 		rRaw = ((((float)vMax) / ((float)value)) - 1.0) * R_REF;