diff --git a/Simulation/DetSimFastModel/src/EcalFastSimG4Model.cpp b/Simulation/DetSimFastModel/src/EcalFastSimG4Model.cpp
index b1132bb3a6980ebf86fd442db7811f6d523110b6..dae2c4399220a114f957c63dce49e24083f14686 100644
--- a/Simulation/DetSimFastModel/src/EcalFastSimG4Model.cpp
+++ b/Simulation/DetSimFastModel/src/EcalFastSimG4Model.cpp
@@ -14,7 +14,7 @@ EcalFastSimG4Model::~EcalFastSimG4Model() {
 
 G4bool EcalFastSimG4Model::IsApplicable(const G4ParticleDefinition& aParticle) {
 //    return aParticle.GetPDGCharge() != 0;
-    return 1;
+    return true;
 }
 
 G4bool EcalFastSimG4Model::ModelTrigger(const G4FastTrack& aFastTrack) {