diff --git a/docs/reference/serial/read-string.md b/docs/reference/serial/read-string.md
index ee449ed2..281d0eef 100644
--- a/docs/reference/serial/read-string.md
+++ b/docs/reference/serial/read-string.md
@@ -1,6 +1,6 @@
 # Serial Read String
 
-Read the buffered serial data as a string
+Read the buffered serial data as a string.
 
 ```sig
 serial.readString();
@@ -8,7 +8,7 @@ serial.readString();
 
 ## Returns
 
-* a [string](/types/string) containing input from the serial port. Empty if no data available.
+* a [string](/types/string) containing input from the serial port. The string is empty if no data is available.
 
 ## Example
 
diff --git a/libs/core/serial.cpp b/libs/core/serial.cpp
index a01813db..b201660a 100644
--- a/libs/core/serial.cpp
+++ b/libs/core/serial.cpp
@@ -75,6 +75,7 @@ namespace serial {
     /**
     * Reads the buffered received data as a string
     */
+    //% help=serial/read-string
     //% blockId=serial_read_buffer block="serial|read string"
     //% weight=18
     StringData* readString() {