diff --git a/w2v-server.pl b/w2v-server.pl
index 67bcba4..7295d4b 100755
--- a/w2v-server.pl
+++ b/w2v-server.pl
@@ -247,7 +247,8 @@
   my $res;
 	my @lists;
 	my @collocations;
-	if(defined($word) && $word !~ /^\s*$/) {
+	$word="idea" if(!defined($word));
+  if(defined($word) && $word !~ /^\s*$/) {
 		$c->inactivity_timeout(300);
 		$word =~ s/\s+/ /g;
     if($opt_m && $word !~ /\|/) {