diff --git a/mscstyle3/index.cgi b/mscstyle3/index.cgi
index 317dfacc2..18061854f 100755
--- a/mscstyle3/index.cgi
+++ b/mscstyle3/index.cgi
@@ -35,7 +35,7 @@ if (!defined($in{'cat'})) {
 
 # Show standard header
 $gconfig{'sysinfo'} = 0 if ($gconfig{'sysinfo'} == 1);
-$theme_index_page = 1;
+$main::theme_index_page = 1;
 $title = $gconfig{'nohostname'} ? $text{'main_title2'} :
         &text('main_title', $ver, $hostname, $ostr);
 &header($title, "",
diff --git a/mscstyle3/theme.pl b/mscstyle3/theme.pl
index 163e7d9ac..b500cd51c 100755
--- a/mscstyle3/theme.pl
+++ b/mscstyle3/theme.pl
@@ -281,7 +281,7 @@ if (@_ > 1 && !$one && $remote_user && !$notabs) {
     $cats = @cats;
     $per = $cats ? 100.0 / $cats : 100;
 
-    if ($theme_index_page) {
+    if ($main::theme_index_page) {
 	    if (!defined($in{'cat'})) {
 	       
 		# Use default category