diff --git a/src/obidms_taxonomy.c b/src/obidms_taxonomy.c
index 6c51625..0815aae 100755
--- a/src/obidms_taxonomy.c
+++ b/src/obidms_taxonomy.c
@@ -2376,9 +2376,10 @@ int read_merged_dmp(const char* taxdump, OBIDMS_taxonomy_p tax, int32_t* delnode
 				// and the deleted taxids with no current reference. An element of the list is composed of the taxid, and the index
 				// of the taxon in the taxa structure, or -1 for deleted taxids.
 				// Creating the merged list requires to merge the 3 ordered lists into one.
-				while (((nT < (tax->taxa)->count) && ((tax->taxa)->taxon[nT].taxid < old_taxid)) || ((nD >= 0) && (delnodes[nD] < old_taxid)))
+				while (((nT < (tax->taxa)->count) && ((tax->taxa)->taxon[nT].taxid < old_taxid)) ||
+						((nD >= 0) && (delnodes[nD] < old_taxid)))
 				{
-					if ((tax->taxa)->taxon[nT].taxid < delnodes[nD])
+					if ((nT < (tax->taxa)->count) && (tax->taxa)->taxon[nT].taxid < delnodes[nD])
 					{ // Add element from taxa list
 						// Enlarge structure if needed
 						if (n == buffer_size)
@@ -2401,7 +2402,7 @@ int read_merged_dmp(const char* taxdump, OBIDMS_taxonomy_p tax, int32_t* delnode
 						nT++;
 						n++;
 					}
-					else if (delnodes[nD] < (tax->taxa)->taxon[nT].taxid)
+					else
 					{ // Add element from deleted taxids list
 						// Enlarge structure if needed
 						if (n == buffer_size)
@@ -3036,12 +3037,12 @@ OBIDMS_taxonomy_p obi_read_taxonomy(OBIDMS_p dms, const char* taxonomy_name, boo
 
 	strcpy(tax->tax_name, taxonomy_name);
 
-	buffer_size = 2048;
-
 	taxonomy_path = get_taxonomy_path(dms, taxonomy_name);
 	if (taxonomy_path == NULL)
 		return NULL;
 
+	buffer_size = strlen(taxonomy_path) + strlen(taxonomy_name) + 6;
+
 	// Read ranks
 	ranks_file_name = (char*) malloc(buffer_size*sizeof(char));
 	if (ranks_file_name == NULL)