diff --git a/e107_handlers/e_db_interface.php b/e107_handlers/e_db_interface.php
index 0b1e029f6..10c77ef01 100644
--- a/e107_handlers/e_db_interface.php
+++ b/e107_handlers/e_db_interface.php
@@ -285,7 +285,7 @@
 		 * @param bool   $debug
 		 * @param string $log_type
 		 * @param string $log_remark
-		 * @return int Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
+		 * @return int|bool Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
 		 * @desc Insert a row into the table<br />
 		 * <br />
 		 * Example:<br />
diff --git a/e107_handlers/e_db_pdo_class.php b/e107_handlers/e_db_pdo_class.php
index 5f3a9c3d9..e3ba59d23 100644
--- a/e107_handlers/e_db_pdo_class.php
+++ b/e107_handlers/e_db_pdo_class.php
@@ -737,7 +737,7 @@ class e_db_pdo implements e_db
 	 * @param bool   $debug
 	 * @param string $log_type
 	 * @param string $log_remark
-	 * @return int Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
+	 * @return int|bool Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
 	 * @desc Insert a row into the table<br />
 	 * <br />
 	 * Example:<br />
diff --git a/e107_handlers/mysql_class.php b/e107_handlers/mysql_class.php
index 45916f185..8e8a85831 100644
--- a/e107_handlers/mysql_class.php
+++ b/e107_handlers/mysql_class.php
@@ -683,7 +683,7 @@ class e_db_mysql implements e_db
 	 * @param bool   $debug
 	 * @param string $log_type
 	 * @param string $log_remark
-	 * @return int Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
+	 * @return int|bool Last insert ID or false on error. When using '_DUPLICATE_KEY_UPDATE' return ID, true on update, 0 on no change and false on error.
 	 * @desc Insert a row into the table<br />
 	 * <br />
 	 * Example:<br />