diff --git a/lib/ext/MyParsedown.php b/lib/ext/MyParsedown.php
index b0815e3..9fc5d38 100644
--- a/lib/ext/MyParsedown.php
+++ b/lib/ext/MyParsedown.php
@@ -68,10 +68,12 @@ class MyParsedown extends ParsedownExtended {
                 if ($opt == 'nolabel')
                     $opts[$opt] = true;
                 else {
-                    list($k, $v) = explode('=', $opt);
-                    if (!isset($opts[$k]))
-                        continue;
-                    $opts[$k] = $v;
+                    if (str_contains($opt, '=')) {
+                        list($k, $v) = explode('=', $opt);
+                        if (!isset($opts[$k]))
+                            continue;
+                        $opts[$k] = $v;
+                    }
                 }
             }