diff --git a/bin/feedGnuplot b/bin/feedGnuplot
index 2706688..dd03af1 100755
--- a/bin/feedGnuplot
+++ b/bin/feedGnuplot
@@ -5,10 +5,20 @@ use Getopt::Long;
 use Time::HiRes qw( usleep );
 use IO::Handle;
 use List::MoreUtils qw( first_index );
+use Text::ParseWords;
+
+use Config;
+if (! $Config{'useithreads'})
+{
+  say "I require a threaded perl";
+  exit(0);
+}
+
 use threads;
 use threads::shared;
 use Thread::Queue;
-use Text::ParseWords;
+
+
 
 our $VERSION = '1.05';