diff --git a/src/option.c b/src/option.c
index 2ec6ed5..4cc6142 100644
--- a/src/option.c
+++ b/src/option.c
@@ -2604,7 +2604,13 @@
 	if (indir & PV_BUF)
 	    curbuf->b_p_script_ctx[indir & PV_MASK] = new_script_ctx;
 	else if (indir & PV_WIN)
+	{
 	    curwin->w_p_script_ctx[indir & PV_MASK] = new_script_ctx;
+	    if (both)
+		// also setting the "all buffers" value
+		curwin->w_allbuf_opt.wo_script_ctx[indir & PV_MASK] =
+								new_script_ctx;
+	}
     }
 }