diff --git a/lib/std/mem/Allocator.zig b/lib/std/mem/Allocator.zig
index bbd9e94c175286f3c2e7968b79851e4e48afbc17..1b63cc6a0f7ea2305c8ce1f394eccb6136ffd877 100644
--- a/lib/std/mem/Allocator.zig
+++ b/lib/std/mem/Allocator.zig
@@ -463,7 +463,7 @@ pub fn dupe(allocator: Allocator, comptime T: type, m: []const T) Error![]T {
     return new_buf;
 }
 
-/// Copies `m` to newly allocated memory, with a null-terminated element. Caller owns the memory.
+/// Copies `m` to newly allocated memory, with a sentinel-terminated element. Caller owns the memory.
 pub fn dupeSentinel(
     allocator: Allocator,
     comptime T: type,