diff --git a/man5/proc.5 b/man5/proc.5
index 131825ed8..7c67d8898 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -5085,7 +5085,7 @@ with
 .B MAP_NORESERVE
 are not checked, and the default check is very weak,
 leading to the risk of getting a process "OOM-killed".
-Under Linux 2.4, any nonzero value implies mode 1.
+In Linux kernel versions before 2.6.0, any nonzero value implies mode 1.
 
 In mode 2 (available since Linux 2.6), the total virtual address space
 that can be allocated