diff --git a/docs/man/man1/dmd.1 b/docs/man/man1/dmd.1
index 9d438e7bb671..b2d59b0b9c11 100644
--- a/docs/man/man1/dmd.1
+++ b/docs/man/man1/dmd.1
@@ -190,6 +190,9 @@ List all variables poing into thread local storage
 .IP -w
 Enable warnings
 
+.IP -wi
+Enable informational warnings
+
 .SH LINKING
 Linking is done directly by the
 .B dmd