diff --git a/src/ecopcr.c b/src/ecopcr.c
index b00490f..2d7d777 100644
--- a/src/ecopcr.c
+++ b/src/ecopcr.c
@@ -417,8 +417,7 @@ int main(int argc, char **argv)
 	taxonomy = read_taxonomy(prefix);
 
 	seq = ecoseq_iterator(prefix);
-	
-	
+		
 	checkedSequence = 0;
 	positiveSequence= 0;
 	amplifiatCount  = 0;
@@ -427,13 +426,13 @@ int main(int argc, char **argv)
 	{
 		checkedSequence++;
 		/**
-		* check if the sequence should be ignored
+		* check if current sequence should be ignored
 		**/
 		if ( (g > 0) && (eco_is_taxid_ignored(excluded_taxid, g, taxonomy->taxons->taxon[seq->taxid].taxid)) )
 			goto next;
 			
 		/**
-		* check the sequence is included
+		* check current sequence is included
 		**/
 		if ( (r > 0) && (!eco_is_taxid_included(taxonomy, restricted_taxid, r, taxonomy->taxons->taxon[seq->taxid].taxid)) )
 			goto next;	
@@ -519,6 +518,9 @@ int main(int argc, char **argv)
 		
 		seq = ecoseq_iterator(NULL);
 	}
+	
+	ECOFREE(restricted_taxid, "Error: could not free restricted_taxid\n");
+	ECOFREE(excluded_taxid, "Error: could not free excluded_taxid\n");
 		
 	return 0;
 }