diff --git a/doc/manuals/orion-api.md b/doc/manuals/orion-api.md
index 01ab451ca1..0b12ed9df8 100644
--- a/doc/manuals/orion-api.md
+++ b/doc/manuals/orion-api.md
@@ -1332,7 +1332,7 @@ PUT /v2/entities/E/attrs/A
 
 would not change attribute value.
 
-Apart from numbers, other value types are supported (eg, strings).
+Apart from numbers, other value types are supported (eg, strings or `DateTime`).
 
 #### `$max`
 
@@ -1360,7 +1360,7 @@ PUT /v2/entities/E/attrs/A
 
 would not change attribute value.
 
-Apart from numbers, other value types are supported (eg, strings).
+Apart from numbers, other value types are supported (eg, strings or `DateTime`).
 
 #### `$push`