diff --git a/rust/src/config.rs b/rust/src/config.rs
index 0daaf48..3190a5c 100644
--- a/rust/src/config.rs
+++ b/rust/src/config.rs
@@ -89,6 +89,7 @@ pub struct PlantConfig {
     pub pump_cooldown_min: u16,
     pub pump_hour_start: u8,
     pub pump_hour_end: u8,
+    pub sensor_a: bool,
     pub sensor_b: bool,
     pub max_consecutive_pump_count: u8,
 }
@@ -101,6 +102,7 @@ impl Default for PlantConfig {
             pump_cooldown_min: 60,
             pump_hour_start: 9,
             pump_hour_end: 20,
+            sensor_a: true,
             sensor_b: false,
             max_consecutive_pump_count: 10,
         }