diff --git a/catgirl.1 b/catgirl.1
index 00df98b..7988e9d 100644
--- a/catgirl.1
+++ b/catgirl.1
@@ -308,9 +308,9 @@ Switch to window by number 0\(en9.
 .It Ic Down
 Scroll window down by one line.
 .It Ic PageDown
-Scroll window down by half a page.
+Scroll window down by one page.
 .It Ic PageUp
-Scroll window up by half a page.
+Scroll window up by one page.
 .It Ic Up
 Scroll window up by one line.
 .El
diff --git a/ui.c b/ui.c
index 2f58fd4..f89c4c4 100644
--- a/ui.c
+++ b/ui.c
@@ -430,8 +430,8 @@ static void keyCode(wchar_t code) {
 	switch (code) {
 		break; case KEY_UP:        windowScroll(win, -1);
 		break; case KEY_DOWN:      windowScroll(win, +1);
-		break; case KEY_PPAGE:     windowScroll(win, -logHeight() / 2);
-		break; case KEY_NPAGE:     windowScroll(win, +logHeight() / 2);
+		break; case KEY_PPAGE:     windowScroll(win, -(logHeight() - 1));
+		break; case KEY_NPAGE:     windowScroll(win, +(logHeight() - 1));
 		break; case KEY_LEFT:      edit(win->tag, EditLeft, 0);
 		break; case KEY_RIGHT:     edit(win->tag, EditRight, 0);
 		break; case KEY_HOME:      edit(win->tag, EditHome, 0);