diff --git a/Detectors/TPC/workflow/src/CalibratordEdxSpec.cxx b/Detectors/TPC/workflow/src/CalibratordEdxSpec.cxx
index ce45356aa28c8..4c2a26da38908 100644
--- a/Detectors/TPC/workflow/src/CalibratordEdxSpec.cxx
+++ b/Detectors/TPC/workflow/src/CalibratordEdxSpec.cxx
@@ -235,7 +235,7 @@ DataProcessorSpec getCalibratordEdxSpec(const o2::base::Propagator::MatCorrType
     Options{
       {"tf-per-slot", VariantType::UInt32, 6000u, {"number of TFs per calibration time slot, is overwritten by seconds-per-slot if > 0"}},
       {"seconds-per-slot", VariantType::Int, 180, {"seconds per calibration time slot, overwrites tf-per-slot if > 0"}},
-      {"max-delay", VariantType::UInt32, 10u, {"number of slots in past to consider"}},
+      {"max-delay", VariantType::UInt32, 1u, {"number of slots in past to consider"}},
       {"min-entries", VariantType::Int, 10000, {"minimum entries per stack to fit a single time slot"}},
       {"calib-interval-extension", VariantType::UInt32, 3600u, {"seconds by which to extend the calibration interval beyond the end of the time slot"}},