diff --git a/StandardConfig/production/HighLevelReco/HighLevelReco.py b/StandardConfig/production/HighLevelReco/HighLevelReco.py
index 8fa8e776..b414e197 100644
--- a/StandardConfig/production/HighLevelReco/HighLevelReco.py
+++ b/StandardConfig/production/HighLevelReco/HighLevelReco.py
@@ -137,9 +137,11 @@
 MyGammaGammaSolutionFinder.OutputLevel = INFO
 MyGammaGammaSolutionFinder.ProcessorType = "GammaGammaSolutionFinder"
 MyGammaGammaSolutionFinder.Parameters = {
-    "InputParticleCollectionName1": ["GammaGammaCandidatePi0s"],
-    "InputParticleCollectionName2": ["GammaGammaCandidateEtas"],
-    "InputParticleCollectionName3": ["GammaGammaCandidateEtaPrimes"],
+    "GammaGammaCandidateCollections" : [
+      "GammaGammaCandidatePi0s",
+      "GammaGammaCandidateEtas",
+      "GammaGammaCandidateEtaPrimes",
+    ],
     "OutputParticleCollectionName": ["GammaGammaParticles"],
     "Printing": ["0"],
 }
diff --git a/StandardConfig/production/HighLevelReco/HighLevelReco.xml b/StandardConfig/production/HighLevelReco/HighLevelReco.xml
index 501103b7..a554d497 100644
--- a/StandardConfig/production/HighLevelReco/HighLevelReco.xml
+++ b/StandardConfig/production/HighLevelReco/HighLevelReco.xml
@@ -95,9 +95,12 @@
 
 
   <processor name="MyGammaGammaSolutionFinder" type="GammaGammaSolutionFinder">
-    <parameter name="InputParticleCollectionName1" value="GammaGammaCandidatePi0s" />
-    <parameter name="InputParticleCollectionName2" value="GammaGammaCandidateEtas" />
-    <parameter name="InputParticleCollectionName3" value="GammaGammaCandidateEtaPrimes" />
+    <parameter name="gammagammaCandidateCollections" >
+      GammaGammaCandidatePi0s
+      GammaGammaCandidateEtas
+      GammaGammaCandidateEtaPrimes
+    </parameter>
+    
     <parameter name="Printing" value="0" />
     <parameter name="OutputParticleCollectionName" value="GammaGammaParticles" />
   </processor>