diff --git a/lang/en_utf8/error.php b/lang/en_utf8/error.php
index 5f21bd2f4ce..6cc2194ebc0 100644
--- a/lang/en_utf8/error.php
+++ b/lang/en_utf8/error.php
@@ -442,7 +442,7 @@ $string['unknowquestiontype'] = 'Unsupported question type $a';
 $string['unknowuploadaction'] = 'Error: Unknown upload action ($a)';
 $string['unsupportedevent'] = 'Unsupported event type';
 $string['unsupportedstate'] = 'Unsupported completion state';
-$string['usupportedwebserver'] = 'Web server software ($a) is not suported, sorry.';
+$string['unsupportedwebserver'] = 'Web server software ($a) is not suported, sorry.';
 $string['upgraderequires19'] = 'Error: New Moodle version was installed on server, unfortunately upgrade from the previous version is not supported.<br />Please upgrade first to latest 1.9.x release. You can also return to previous version by reinstalling original files.';
 $string['urlnotdefinerss'] = 'URL not defined for RSS feed';
 $string['userautherror'] = 'Unknown auth plugin';
diff --git a/lib/setuplib.php b/lib/setuplib.php
index 1a344ea7ad7..30d3c66b741 100644
--- a/lib/setuplib.php
+++ b/lib/setuplib.php
@@ -150,7 +150,7 @@ function initialise_fullme() {
         $_SERVER['REQUEST_URI'] = $rurl['fullpath']; // extra IIS compatibility
 
     } else {
-        print_error('usupportedwebserver', 'error', '', $_SERVER['SERVER_SOFTWARE']);
+        print_error('unsupportedwebserver', 'error', '', $_SERVER['SERVER_SOFTWARE']);
     }
 
     if (strpos($rurl['path'], $url['path']) === 0) {