diff --git a/options/reconstruction.py b/options/reconstruction.py
index 00ed759b671189b839c59de515f8e6d289142802..a8be70b50e06e27a4718be7e0acb7851dfdfa34c 100644
--- a/options/reconstruction.py
+++ b/options/reconstruction.py
@@ -132,7 +132,7 @@ algorithms.append(dummy)
 
 # Truth level kinematics
 truth_incl_kin = InclusiveKinematicsTruth("InclusiveKinematicsTruth",
-        inputParticles="mcparticles",
+        inputMCParticles="mcparticles",
         outputData="InclusiveKinematicsTruth"
 )
 algorithms.append(truth_incl_kin)