diff --git a/Documentation/i2c/smbus-protocol.rst b/Documentation/i2c/smbus-protocol.rst
index 8510eeda1dd0..fbadd4d25ad5 100644
--- a/Documentation/i2c/smbus-protocol.rst
+++ b/Documentation/i2c/smbus-protocol.rst
@@ -35,19 +35,19 @@ Key to symbols
 ==============
 
 =============== =============================================================
-S             : Start condition
-P             : Stop condition
-Rd/Wr (1 bit) : Read/Write bit. Rd equals 1, Wr equals 0.
-A, NA (1 bit) : Accept and reverse accept bit.
-Addr  (7 bits): I2C 7 bit address. Note that this can be expanded as usual to
+S               Start condition
+P               Stop condition
+Rd/Wr (1 bit)   Read/Write bit. Rd equals 1, Wr equals 0.
+A, NA (1 bit)   Accept and reverse accept bit.
+Addr  (7 bits)  I2C 7 bit address. Note that this can be expanded as usual to
                 get a 10 bit I2C address.
-Comm  (8 bits): Command byte, a data byte which often selects a register on
+Comm  (8 bits)  Command byte, a data byte which often selects a register on
                 the device.
-Data  (8 bits): A plain data byte. Sometimes, I write DataLow, DataHigh
+Data  (8 bits)  A plain data byte. Sometimes, I write DataLow, DataHigh
                 for 16 bit data.
-Count (8 bits): A data byte containing the length of a block operation.
+Count (8 bits)  A data byte containing the length of a block operation.
 
-[..]:           Data sent by I2C device, as opposed to data sent by the host
+[..]            Data sent by I2C device, as opposed to data sent by the host
                 adapter.
 =============== =============================================================