diff --git a/Documentation/i2c/smbus-protocol.rst b/Documentation/i2c/smbus-protocol.rst
index 7350e4b2c2fa..0edaf6069ac1 100644
--- a/Documentation/i2c/smbus-protocol.rst
+++ b/Documentation/i2c/smbus-protocol.rst
@@ -282,9 +282,10 @@ This is implemented the following way in the Linux kernel:
 I2C Block Transactions
 ======================
 
-The following I2C block transactions are supported by the
-SMBus layer and are described here for completeness.
-They are *NOT* defined by the SMBus specification.
+The following I2C block transactions are similar to the SMBus Block Read
+and Write operations, except these do not have a Count byte. They are
+supported by the SMBus layer and are described here for completeness, but
+they are *NOT* defined by the SMBus specification.
 
 I2C block transactions do not limit the number of bytes transferred
 but the SMBus layer places a limit of 32 bytes.