diff --git a/src/charset.c b/src/charset.c
index f7ce335..b245bd7 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -1173,7 +1173,7 @@
 		    size += cells;
 		}
 	    }
-	    if (tp->tp_col - 1 > col)
+	    if (tp->tp_col != MAXCOL && tp->tp_col - 1 > col)
 		break;
 	}
     }