diff --git a/core/dbengine.php b/core/dbengine.php
index 4467a296..19502551 100644
--- a/core/dbengine.php
+++ b/core/dbengine.php
@@ -146,7 +146,7 @@ function _log($a, $b = null): float
     if (is_null($b)) {
         return log($a);
     } else {
-        return log($a, $b);
+        return log($b, $a);
     }
 }
 function _isnull($a): bool
diff --git a/ext/tag_list/main.php b/ext/tag_list/main.php
index 9fc49eba..ad22b6f2 100644
--- a/ext/tag_list/main.php
+++ b/ext/tag_list/main.php
@@ -390,7 +390,7 @@ class TagList extends Extension
         }
 
         $tag_data = $database->get_all("
-            SELECT tag, count, FLOOR(LOG(count)) AS scaled
+            SELECT tag, count, FLOOR(LOG(10, count)) AS scaled
             FROM tags
             WHERE count >= :tags_min
             ORDER BY count DESC, tag ASC