diff --git a/adminer/include/auth.inc.php b/adminer/include/auth.inc.php
index aaa01a0b..b713da1f 100644
--- a/adminer/include/auth.inc.php
+++ b/adminer/include/auth.inc.php
@@ -144,4 +144,7 @@ if ($_POST) {
 } elseif ($_SERVER["REQUEST_METHOD"] == "POST") {
 	// posted form with no data means that post_max_size exceeded because Adminer always sends token at least
 	$error = lang('Too big POST data. Reduce the data or increase the %s configuration directive.', "'post_max_size'");
+	if (isset($_GET["sql"])) {
+		$error .= ' ' . lang('You can upload a big SQL file via FTP and import it from server.');
+	}
 }
diff --git a/adminer/lang/cs.inc.php b/adminer/lang/cs.inc.php
index 6e679187..699b6693 100644
--- a/adminer/lang/cs.inc.php
+++ b/adminer/lang/cs.inc.php
@@ -65,6 +65,7 @@ $translations = array(
 	'Unable to upload a file.' => 'Nepodařilo se nahrát soubor.',
 	'Maximum allowed file size is %sB.' => 'Maximální povolená velikost souboru je %sB.',
 	'Too big POST data. Reduce the data or increase the %s configuration directive.' => 'Příliš velká POST data. Zmenšete data nebo zvyšte hodnotu konfigurační direktivy %s.',
+	'You can upload a big SQL file via FTP and import it from server.' => 'Velký SQL soubor můžete nahrát pomocí FTP a importovat ho ze serveru.',
 	
 	'Export' => 'Export',
 	'Dump' => 'Export',
diff --git a/adminer/lang/xx.inc.php b/adminer/lang/xx.inc.php
index d7712ee1..88f5db02 100644
--- a/adminer/lang/xx.inc.php
+++ b/adminer/lang/xx.inc.php
@@ -65,6 +65,7 @@ $translations = array(
 	'Unable to upload a file.' => 'xx',
 	'Maximum allowed file size is %sB.' => 'xx',
 	'Too big POST data. Reduce the data or increase the %s configuration directive.' => 'xx',
+	'You can upload a big SQL file via FTP and import it from server.' => 'xx',
 	
 	'Export' => 'xx',
 	'Dump' => 'xx',