diff --git a/man2/shmget.2 b/man2/shmget.2
index 146974a5d..14ed0bbe3 100644
--- a/man2/shmget.2
+++ b/man2/shmget.2
@@ -288,7 +288,14 @@ Since Linux 2.4, the default value for this limit is
 
     SHMMAX / PAGE_SIZE * (SHMMNI / 16)
 
-Assuming a 4kB page size, this formula yields the value 2^21 (2,097,152).
+If
+.B SHMMAX
+and
+.B SHMMNI
+are not modified, this yields a limit for the
+total memory used by all shared memory segments of 8 GB:
+With a 4kB page size, this formula yields the value 2^21 (2,097,152),
+with 8kB page size, it yields 2^20 (1048576).
 
 On Linux, this limit can be read and modified via
 .IR /proc/sys/kernel/shmall .