diff --git a/ext/not_a_tag/main.php b/ext/not_a_tag/main.php
index c73df2f4..be1c3e22 100644
--- a/ext/not_a_tag/main.php
+++ b/ext/not_a_tag/main.php
@@ -77,7 +77,9 @@ class NotATag extends Extension
 
         $pairs = $database->get_pairs("SELECT LOWER(tag), redirect FROM untags");
         foreach ($pairs as $tag => $url) {
-            if (in_array(strtolower($tag), $tags)) {
+            // cast to string because PHP automatically turns ["69" => "No sex"]
+            // into [69 => "No sex"]
+            if (in_array(strtolower((string)$tag), $tags)) {
                 throw new TagSetException("Invalid tag used: $tag", $url);
             }
         }
diff --git a/ext/numeric_score/main.php b/ext/numeric_score/main.php
index 8024304c..a24ac089 100644
--- a/ext/numeric_score/main.php
+++ b/ext/numeric_score/main.php
@@ -152,7 +152,7 @@ class NumericScore extends Extension
             $result = $database->get_col($sql, $args);
             $images = [];
             foreach ($result as $id) {
-                $images[] = Image::by_id(int_escape($id));
+                $images[] = Image::by_id((int)$id);
             }
 
             $this->theme->view_popular($images, $dte);