diff --git a/adminer/sql.inc.php b/adminer/sql.inc.php
index 06a068cc..fcb07785 100644
--- a/adminer/sql.inc.php
+++ b/adminer/sql.inc.php
@@ -71,10 +71,10 @@ if (!$error && $_POST) {
 				if (!$found && $fp && !feof($fp)) {
 					$query .= fread($fp, 1e5);
 				} else {
-					$offset = $pos + strlen($found);
 					if (!$found && rtrim($query) == "") {
 						break;
 					}
+					$offset = $pos + strlen($found);
 					if ($found && rtrim($found) != $delimiter) { // find matching quote or comment end
 						while (preg_match('(' . ($found == '/*' ? '\\*/' : ($found == '[' ? ']' : (ereg('^-- |^#', $found) ? "\n" : preg_quote($found) . "|\\\\."))) . '|$)s', $query, $match, PREG_OFFSET_CAPTURE, $offset)) { //! respect sql_mode NO_BACKSLASH_ESCAPES
 							$s = $match[0][0];