diff --git a/max31855.c b/max31855.c
--- a/max31855.c
+++ b/max31855.c
@@ -31,7 +31,7 @@ void max31855_readtemp(SPI_HandleTypeDef
         status.temp = 0;
         status.temp_frac = 0;
     } */
-    if(temp_pre & 0b001 && !set->ignore_tc_error) {
+    if(temp_pre & 0b001 && !set->val.ignore_tc_error) {
         status->tc_errno = 1;
         HAL_Delay(400); // FIXME: remove?
         status->state_resume = status->state;
@@ -72,21 +72,21 @@ void max31855_readtemp(SPI_HandleTypeDef
         }
 
         // Convert to Fahrenheit
-        if(set->temp_units == TEMP_UNITS_FAHRENHEIT)
+        if(set->val.temp_units == TEMP_UNITS_FAHRENHEIT)
         {
             status->temp = signint * ((temp_pre*100) + status->temp_frac);
             status->temp = status->temp * 1.8;
             status->temp += 3200;
             status->temp_frac = status->temp % 100;
             status->temp /= 100;
-            status->temp += set->temp_offset;
+            status->temp += set->val.temp_offset;
         }
 
         // Use Celsius values
         else
         {
             status->temp = temp_pre * signint;
-            status->temp += set->temp_offset;
+            status->temp += set->val.temp_offset;
         }
     }
 }