diff --git a/setup.py b/setup.py
index 0557cf6..34fb416 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='sniffles',
-    version='2.4',
+    version='2.4.1',
     packages=find_packages(),
     url='https://github.com/fritzsedlazeck/Sniffles',
     license='MIT',
@@ -11,4 +11,4 @@
     description='A fast structural variation caller for long-read sequencing data',
     long_description=open('README.md').read(),
     long_description_content_type='text/markdown',
-)
\ No newline at end of file
+)
diff --git a/src/sniffles/config.py b/src/sniffles/config.py
index c4ab71a..d0ed6e8 100644
--- a/src/sniffles/config.py
+++ b/src/sniffles/config.py
@@ -3,7 +3,7 @@
 # Sniffles2
 # A fast structural variant caller for long-read sequencing data
 #
-# Created:     18.10.2021
+# Created: 18.10.2021
 # Author:      Moritz Smolka
 # Maintainer:  Hermann Romanek
 # Contact:     sniffles@romanek.at
@@ -13,7 +13,6 @@
 import sys
 import datetime
 import argparse
-from collections import defaultdict
 
 from typing import Union, Optional
 
@@ -21,7 +20,7 @@
 from sniffles.region import Region
 
 VERSION = "Sniffles2"
-BUILD = "2.4"
+BUILD = "2.4.1"
 SNF_VERSION = "S2_rc4"
 
 
diff --git a/src/sniffles/vcf.py b/src/sniffles/vcf.py
index dda98cb..3b990af 100755
--- a/src/sniffles/vcf.py
+++ b/src/sniffles/vcf.py
@@ -154,7 +154,7 @@ def write_header(self, contigs_lengths):
         self.write_header_line('INFO=<ID=IMPRECISE,Number=0,Type=Flag,Description="Structural variation with imprecise breakpoints">')
         self.write_header_line('INFO=<ID=MOSAIC,Number=0,Type=Flag,Description="Structural variation classified as putative mosaic">')
         self.write_header_line('INFO=<ID=SVLEN,Number=1,Type=Integer,Description="Length of structural variation">')
-        self.write_header_line('INFO=<ID=SVLENGTHS,Number=.,Type=Integer,Description="Lengths of structural variation (all)">')
+        self.write_header_line('INFO=<ID=SVLENGTH,Number=.,Type=Integer,Description="Lengths of structural variation (all)">')
         self.write_header_line('INFO=<ID=SVTYPE,Number=1,Type=String,Description="Type of structural variation">')
         self.write_header_line('INFO=<ID=CHR2,Number=1,Type=String,Description="Mate chromsome for BND SVs">')
         self.write_header_line('INFO=<ID=SUPPORT,Number=1,Type=Integer,Description="Number of reads supporting the structural variation">')
@@ -222,7 +222,7 @@ def write_call(self, call):
         infos = {
             "SVTYPE": call.svtype,
             "SVLEN": call.svlen,
-            "SVLENGTHS": ",".join(map(str, call.svlens)),
+            "SVLENGTHS": call.svlens,
             "END": end,
             "SUPPORT": call.support,
             "RNAMES": call.rnames if self.config.output_rnames else None,
@@ -349,6 +349,9 @@ def read_svs_iter(self):
 
                 if "SVLEN" in info_dict:
                     call.svlen = int(info_dict["SVLEN"])
+                if "SVLENGTHS`" in info_dict:
+                    call.svlens = info_dict["SVLENGTHS"]
+
                 if "END" in info_dict:
                     call.end = int(info_dict["END"])