diff --git a/src/version.c b/src/version.c
index 25e38ca..c9113e6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    575,
+/**/
     574,
 /**/
     573,
diff --git a/src/window.c b/src/window.c
index c87cce0..db0bb1b 100644
--- a/src/window.c
+++ b/src/window.c
@@ -3789,13 +3789,14 @@
     if ((tcl_flags & TCL_USELAST) && valid_tabpage(lastused_tabpage))
 	return lastused_tabpage;
 
-    // Use the previous tab page, if possible.
+    // Use the next tab page, if possible.
     forward = curtab->tp_next != NULL &&
 	    ((tcl_flags & TCL_LEFT) == 0 || curtab == first_tabpage);
 
     if (forward)
 	tp = curtab->tp_next;
     else
+	// Use the previous tab page.
 	for (tp = first_tabpage; tp->tp_next != curtab; tp = tp->tp_next)
 	    ;