diff --git a/adminer/functions.js b/adminer/functions.js
index 787902ed..0686a524 100644
--- a/adminer/functions.js
+++ b/adminer/functions.js
@@ -89,12 +89,14 @@ function editing_add_row(button, allowed) {
 		tags2[i].selectedIndex = tags[i].selectedIndex;
 	}
 	tags = row.getElementsByTagName('input');
-	tags2 = row2.getElementsByTagName('input');
+	var ai;
 	for (var i=0; i < tags.length; i++) {
 		if (tags[i].name == 'auto_increment_col') {
 			tags[i].value = x;
-			tags2[i].checked = tags[i].checked;
-			tags[i].checked = false;
+			if (tags[i].checked) {
+				ai = i;
+				tags[i].checked = false;
+			}
 		}
 		tags[i].name = tags[i].name.replace(/([0-9.]+)/, x);
 		if (/\[(orig|field|comment)/.test(tags[i].name)) {
@@ -102,6 +104,9 @@ function editing_add_row(button, allowed) {
 		}
 	}
 	row.parentNode.insertBefore(row2, row);
+	if (ai !== undefined) {
+		row2.getElementsByTagName('input')[ai].checked = true;
+	}
 	tags[0].focus();
 	added += '0';
 	row_count++;