1 files changed, 3 insertions, 0 deletions
diff --git a/mdocml.c b/mdocml.c
index d0082bae..8576cc2b 100644
--- a/mdocml.c
+++ b/mdocml.c
@@ -491,6 +491,9 @@ msg_warn(void *arg, int tok, int col, enum mdoc_warn type)
 	case (WARN_IGN_BEFORE_BLK):
 		fmt = "ignore: macro before block macro `%s' ignored";
 		break;
+	case (WARN_COMPAT_TROFF):
+		fmt = "compat: macro `%s' behaves differently in troff and nroff";
+		break;
 	default:
 		abort();
 		/* NOTREACHED */