diff --git a/reference/stream/streamwrapper/stream-seek.xml b/reference/stream/streamwrapper/stream-seek.xml
index 7e66e59359..7054238e1c 100644
--- a/reference/stream/streamwrapper/stream-seek.xml
+++ b/reference/stream/streamwrapper/stream-seek.xml
@@ -46,6 +46,13 @@
SEEK_END - Set position to end-of-file plus offset.
+
+
+ The current implementation never sets whence to
+ SEEK_CUR; instead such seeks are internally converted
+ to SEEK_SET seeks.
+
+