diff --git a/docs/lib3x-hashmap_del.md b/docs/lib3x-hashmap_del.md
index 69fdeec5..ed90bd59 100644
--- a/docs/lib3x-hashmap_del.md
+++ b/docs/lib3x-hashmap_del.md
@@ -7,7 +7,7 @@ This function deletes the mapping for the specified key from a [util/map/hashmap
 ## Parameters
 
 - `map` : The original map.
-- `key` : Adds the specified element to the specified set
+- `key` : The specified key.
 - `eq` : A equality function. If it's ignored, use `==` to compare elements.
 - `hash` : A hash function. If it's ignored, convert each element to a string and hash it. 
 
diff --git a/docs/lib3x-hashmap_get.md b/docs/lib3x-hashmap_get.md
index 75916cee..be3f214e 100644
--- a/docs/lib3x-hashmap_get.md
+++ b/docs/lib3x-hashmap_get.md
@@ -7,7 +7,7 @@ This function gets the value of the specified key from a [util/map/hashmap](http
 ## Parameters
 
 - `map` : The original map.
-- `key` : Adds the specified element to the specified set
+- `key` : The specified key.
 - `eq` : A equality function. If it's ignored, use `==` to compare elements.
 - `hash` : A hash function. If it's ignored, convert each element to a string and hash it. 
 
diff --git a/docs/lib3x-hashmap_put.md b/docs/lib3x-hashmap_put.md
index 5af4e609..e5b1e5bd 100644
--- a/docs/lib3x-hashmap_put.md
+++ b/docs/lib3x-hashmap_put.md
@@ -7,6 +7,10 @@ Puts a key/value pair to a [util/map/hashmap](https://openhome.cc/eGossip/OpenSC
 ## Parameters
 
 - `map` : The original map.
+- `key` : The specified key.
+- `value` : The specified value.
+- `eq` : A equality function. If it's ignored, use `==` to compare elements.
+- `hash` : A hash function. If it's ignored, convert each element to a string and hash it. 
 
 ## Examples