diff --git a/src/screen.c b/src/screen.c
index a933d6c..380eb8b 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -4399,7 +4399,11 @@
 # ifdef FEAT_RIGHTLEFT
 			    wp->w_p_rl ? (col >= 0) :
 # endif
-			    (col < W_WIDTH(wp))))
+			    (col
+# ifdef FEAT_CONCEAL
+				- boguscols
+# endif
+					    < W_WIDTH(wp))))
 		{
 		    /* Highlight until the right side of the window */
 		    c = ' ';