diff --git a/molecule/specs/plugins/builtin.py b/molecule/specs/plugins/builtin.py
index e2300c1..fbbcf56 100644
--- a/molecule/specs/plugins/builtin.py
+++ b/molecule/specs/plugins/builtin.py
@@ -491,8 +491,8 @@ class IsoHandler(GenericExecutionStep):
         args.extend(self.Config['iso_builder_builtin_args'])
         args.extend(self.metadata.get('extra_mkisofs_parameters',[]))
         if self.iso_title.strip():
-            args.extend(["-V",'"',self.iso_title[:32],'"'])
-        args.extend(['-o',self.dest_iso,self.source_path])
+            args.extend(["-V", '"', self.iso_title[:30], '"'])
+        args.extend(['-o',self.dest_iso, self.source_path])
         self.Output.updateProgress("[%s|%s] %s: %s" % (
                 blue("IsoHandler"), darkred(self.spec_name),
                 _("spawning"), args,