diff --git a/bin/parse_mixMHC2pred.py b/bin/parse_mixMHC2pred.py
index 1e72c20..987439c 100755
--- a/bin/parse_mixMHC2pred.py
+++ b/bin/parse_mixMHC2pred.py
@@ -76,6 +76,8 @@ def parse_vcf(vep_vcf, sample_name, normal_name):
         enst = CSQ[6]
         variant = CSQ[14] + CSQ[15]
 
+        gene_symbol = gene_symbol if gene_symbol else ensg
+
         vcf_record = {
             "chrom": chrom,
             "pos": pos,
@@ -94,6 +96,7 @@ def parse_vcf(vep_vcf, sample_name, normal_name):
             "variant": variant,
         }
 
+
         if "frameshift_variant" in variant_type.split("&"):
             key = gene_symbol + "_" + enst + "_" + CSQ[14] + ref + "/" + alt
         else:
diff --git a/nextNEOpi.nf b/nextNEOpi.nf
index b695b2a..8f476b0 100644
--- a/nextNEOpi.nf
+++ b/nextNEOpi.nf
@@ -5433,6 +5433,7 @@ if(!iedb_chck_file.exists() || iedb_chck_file.isEmpty()) {
         """
         CWD=`pwd`
         cd /opt/iedb/
+        rm -f $mhci_file
         wget $iedb_MHCI_url
         tar -xzvf $mhci_file
         cd mhc_i
@@ -5440,6 +5441,7 @@ if(!iedb_chck_file.exists() || iedb_chck_file.isEmpty()) {
         cd /opt/iedb/
         rm -f $mhci_file
 
+        rm -f $mhcii_file
         wget $iedb_MHCII_url
         tar -xzvf $mhcii_file
         cd mhc_ii