diff --git a/alsamixer/widget.c b/alsamixer/widget.c
index 464f440..6f1644a 100644
--- a/alsamixer/widget.c
+++ b/alsamixer/widget.c
@@ -19,6 +19,8 @@
 #include "aconfig.h"
 #include <stdlib.h>
 #include <term.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
 #include "die.h"
 #include "widget.h"
 
@@ -127,6 +129,10 @@ void window_size_changed(void)
 {
 	PANEL *panel, *below;
 	const struct widget *widget;
+	struct winsize size;
+
+	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &size) == 0)
+		resize_term(size.ws_row, size.ws_col);
 
 	getmaxyx(stdscr, screen_lines, screen_cols);
 	if (tigetflag("xenl") != 1 && tigetflag("am") != 1)