1 files changed, 4 insertions, 0 deletions
diff --git a/argv.c b/argv.c
index 01dba107..77864950 100644
--- a/argv.c
+++ b/argv.c
@@ -294,6 +294,10 @@ args(struct mdoc *mdoc, int line,
 			if ( ! mdoc_iscdelim(buf[i]))
 				break;
 			i++;
+			/* There must be at least one space... */
+			if (0 == buf[i] || ! isspace((int)buf[i]))
+				break;
+			i++;
 			while (buf[i] && isspace((int)buf[i]))
 				i++;
 		}