1 files changed, 4 insertions, 2 deletions
diff --git a/roff.7 b/roff.7
index 15f74e30..98957c6e 100644
--- a/roff.7
+++ b/roff.7
@@ -543,8 +543,10 @@ one explicit newline character.
 In order to prevent endless recursion, both groff and
 .Xr mandoc 1
 limit the stack depth for expanding macros and strings
-to a large, but finite number.
-Do not rely on the exact value of this limit.
+to a large, but finite number, and
+.Xr mandoc 1
+also limits the length of the expanded input line.
+Do not rely on the exact values of these limits.
 .Ss \&dei
 Define a
 .Nm