diff --git a/src/modules/sensors/data_validator/DataValidatorGroup.cpp b/src/modules/sensors/data_validator/DataValidatorGroup.cpp
index a7ded78d26..eabf61788c 100644
--- a/src/modules/sensors/data_validator/DataValidatorGroup.cpp
+++ b/src/modules/sensors/data_validator/DataValidatorGroup.cpp
@@ -230,6 +230,10 @@ float *DataValidatorGroup::get_best(uint64_t timestamp, int *index)
 				if (_first_failover_time == 0) {
 					_first_failover_time = timestamp;
 				}
+
+				if (max_confidence < FLT_EPSILON) {
+					max_index = -1;
+				}
 			}
 		}