1 files changed, 16 insertions, 0 deletions
diff --git a/macro.c b/macro.c
index 02cf985c..d2e5d30f 100644
--- a/macro.c
+++ b/macro.c
@@ -219,6 +219,18 @@ append_const(struct mdoc *mdoc, int tok,
 		mdoc_word_alloc(mdoc, pos, args[1]);
 		return(1);
 
+	case (MDOC_Nd):
+		if (sz > 0)
+			break;
+		if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1))
+			return(0);
+		break;
+	
+	case (MDOC_Hf):
+		if (1 == sz)
+			break;
+		return(mdoc_err(mdoc, tok, pos, ERR_ARGS_EQ1));
+
 	case (MDOC_Bx):
 		/* FALLTHROUGH */
 	case (MDOC_Bsx):
@@ -307,6 +319,10 @@ append_text(struct mdoc *mdoc, int tok,
 		/* FALLTHROUGH */
 	case (MDOC_Ic):
 		/* FALLTHROUGH */
+	case (MDOC_Sy):
+		/* FALLTHROUGH */
+	case (MDOC_Sx):
+		/* FALLTHROUGH */
 	case (MDOC_Va):
 		/* FALLTHROUGH */
 	case (MDOC_Vt):