diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 104c6d047d9b..c6a6b9df2104 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -1899,8 +1899,8 @@ For more information on mount propagation see:
 These files provide a method to access a task's comm value. It also allows for
 a task to set its own or one of its thread siblings comm value. The comm value
 is limited in size compared to the cmdline value, so writing anything longer
-then the kernel's TASK_COMM_LEN (currently 16 chars) will result in a truncated
-comm value.
+then the kernel's TASK_COMM_LEN (currently 16 chars, including the NUL
+terminator) will result in a truncated comm value.
 
 
 3.7	/proc/<pid>/task/<tid>/children - Information about task children