diff --git a/modules/src/print/print.3 b/modules/src/print/print.3
index 8688606e..4b8db9ef 100644
--- a/modules/src/print/print.3
+++ b/modules/src/print/print.3
@@ -35,6 +35,7 @@ and
 .I doprnt
 place output on the open file known by
 .IR filep .
+.I filep could for instance be STDOUT or STDERR.
 .I Sprint
 places `output' in the string
 .IR s ,