diff --git a/mutalyzer/File.py b/mutalyzer/File.py
index 561503d7bd605b968f1af779067bc7c4ea4427e5..95aa98ae294957eab7cb6afbfcd38b46fa5427c9 100644
--- a/mutalyzer/File.py
+++ b/mutalyzer/File.py
@@ -171,6 +171,7 @@ class File() :
         try :
             # Todo: delimiters in config file
             dialect = csv.Sniffer().sniff(buf, delimiters="\t ;|,")
+            dialect.skipinitialspace = True
         except csv.Error:
             #self.__output.addMessage(__file__, 4, "EBPARSE", e)
             #return None