diff --git a/docs/02.API-REFERENCE.md b/docs/02.API-REFERENCE.md
index dd08908c63..780e5fd4e6 100644
--- a/docs/02.API-REFERENCE.md
+++ b/docs/02.API-REFERENCE.md
@@ -1384,7 +1384,7 @@ Returns whether the given `jerry_value_t` is a number.
 
 ```c
 bool
-jerry_value_is_function (const jerry_value_t value)
+jerry_value_is_number (const jerry_value_t value)
 ```
 
 - `value` - api value