diff --git a/RDFSharp/Query/Mirella/Algebra/Aggregators/RDFPartitionAggregator.cs b/RDFSharp/Query/Mirella/Algebra/Aggregators/RDFPartitionAggregator.cs
index 6e78622a..ca6ae174 100644
--- a/RDFSharp/Query/Mirella/Algebra/Aggregators/RDFPartitionAggregator.cs
+++ b/RDFSharp/Query/Mirella/Algebra/Aggregators/RDFPartitionAggregator.cs
@@ -52,7 +52,7 @@ internal override void ExecutePartition(String partitionKey, DataRow tableRow)
         {
             //Get aggregator value
             String aggregatorValue = this.AggregatorContext.GetPartitionKeyExecutionResult<String>(partitionKey, String.Empty) ?? String.Empty;
-            //Update aggregator context (sample)
+            //Update aggregator context (partition)
             if (String.IsNullOrEmpty(aggregatorValue))
                 this.AggregatorContext.UpdatePartitionKeyExecutionResult<String>(partitionKey, partitionKey);
         }