--- a/src/common/util.cc	2018-05-29 14:04:02.000000000 +0200
+++ b/src/common/util.cc	2018-06-04 13:45:52.279495745 +0200
@@ -96,7 +96,6 @@ static bool os_release_parse(map<string,
   static const map<string, string> kvm = {
     { "distro", "ID=" },
     { "distro_description", "PRETTY_NAME=" },
-    { "distro_version", "VERSION_ID=" }
   };
 
   FILE *fp = fopen("/etc/os-release", "r");