diff --git a/src/drawline.c b/src/drawline.c
index b627192..fd5d56b 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -62,7 +62,7 @@
     *left_col = 0;
     *right_col = width1;
 
-    if (wp->w_virtcol >= (colnr_T)width1)
+    if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
 	*right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2;
     if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
 	*left_col = (wp->w_virtcol - width1) / width2 * width2 + width1;