diff --git a/CHANGELOG.md b/CHANGELOG.md
index d42f99a7..58fb4ca6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 ## Adminer dev
+- SQL command: Unlink NULL primary keys
 
 ## Adminer 5.4.0 (released 2025-09-08)
 - Allow specifying operator in search anywhere
diff --git a/adminer/include/editing.inc.php b/adminer/include/editing.inc.php
index 78a436c7..3fa68a8e 100644
--- a/adminer/include/editing.inc.php
+++ b/adminer/include/editing.inc.php
@@ -72,6 +72,10 @@ function print_select_result($result, ?Db $connection2 = null, array $orgtables
 				} else {
 					$link = ME . "edit=" . urlencode($links[$key]);
 					foreach ($indexes[$links[$key]] as $col => $j) {
+						if ($row[$j] === null) {
+							$link = "";
+							break;
+						}
 						$link .= "&where" . urlencode("[" . bracket_escape($col) . "]") . "=" . urlencode($row[$j]);
 					}
 				}