diff --git a/lib/libc/gen/vis.3 b/lib/libc/gen/vis.3
index 25f1365a1b10..2cc1e5a60334 100644
--- a/lib/libc/gen/vis.3
+++ b/lib/libc/gen/vis.3
@@ -138,7 +138,7 @@ The following flags
 alter this:
 .Bl -tag -width VIS_WHITEX
 .It Dv VIS_GLOB
-Also encode magic characters ('*', '?', '[') recognized by
+Also encode magic characters ('*', '?', '[' and '#') recognized by
 .Xr glob 3
 .It Dv VIS_SP
 Also encode space.
diff --git a/lib/libc/gen/vis.c b/lib/libc/gen/vis.c
index 4f594ebe3f59..1d7e860636b0 100644
--- a/lib/libc/gen/vis.c
+++ b/lib/libc/gen/vis.c
@@ -71,7 +71,8 @@ vis(dst, c, flag, nextc)
 		}
 	}
 
-	if ((flag & VIS_GLOB) && (c == '*' || c == '?' || c == '['))
+	if ((flag & VIS_GLOB) &&
+	    (c == '*' || c == '?' || c == '[' || c == '#'))
 		;
 	else if (isgraph(c) ||
 	   ((flag & VIS_SP) == 0 && c == ' ') ||