diff --git a/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java b/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
index 7166797..c2c4dde 100644
--- a/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
+++ b/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
@@ -157,7 +157,7 @@ public class MapsComparator extends StandardLocalExternalAlgorithm {
 			da.setConfiguration(config);
 			da.init(false);
 			outputParameters = da.analyze();
-			outputParameters.put("Resolution", "" + resolution);
+			outputParameters.put("RESOLUTION", "" + resolution);
 			status = 80;
 			AnalysisLogger.getLogger().debug("MapsComparator: Output: " + outputParameters);