diff --git a/companion/src/firmwares/sensordata.cpp b/companion/src/firmwares/sensordata.cpp
index 753d2eed0..ebcccfa6a 100644
--- a/companion/src/firmwares/sensordata.cpp
+++ b/companion/src/firmwares/sensordata.cpp
@@ -217,7 +217,7 @@ bool SensorData::isSourceAvailable(const ModelData * model, const int index)
   const int sensorcnt = firmware->getCapability(Sensors);
   const int i = abs(index);
 
-  if (model && sensorcnt > 0 and i <= sensorcnt) {
+  if (model && sensorcnt > 0 && i <= sensorcnt) {
     if (i > 0)
       return model->sensorData[i - 1].isAvailable();
     else