diff --git a/examples/windowsize/main.go b/examples/windowsize/main.go
index 3af42228e..3a99d4787 100644
--- a/examples/windowsize/main.go
+++ b/examples/windowsize/main.go
@@ -251,7 +251,7 @@ func (g *game) Update(screen *ebiten.Image) error {
 	ebiten.SetWindowDecorated(decorated)
 	ebiten.SetWindowPosition(positionX, positionY)
 	ebiten.SetWindowFloating(floating)
-	if maximize {
+	if maximize && ebiten.IsWindowResizable() {
 		ebiten.MaximizeWindow()
 	}
 	if minimize {
@@ -294,7 +294,7 @@ func (g *game) Draw(screen *ebiten.Image) {
 	}
 
 	var lines []string
-	if !ebiten.IsWindowMaximized() {
+	if !ebiten.IsWindowMaximized() && ebiten.IsWindowResizable() {
 		lines = append(lines, "[M] Maximize the window")
 	}
 	if !ebiten.IsWindowMinimized() {
@@ -403,6 +403,7 @@ func main() {
 		ebiten.SetWindowFloating(true)
 	}
 	if *flagMaximize {
+		ebiten.SetWindowResizable(true)
 		ebiten.MaximizeWindow()
 	}
 	if *flagAutoAdjusting {
diff --git a/internal/uidriver/glfw/window.go b/internal/uidriver/glfw/window.go
index 7c1541ec6..cad5df1af 100644
--- a/internal/uidriver/glfw/window.go
+++ b/internal/uidriver/glfw/window.go
@@ -129,6 +129,9 @@ func (w *window) IsMaximized() bool {
 }
 
 func (w *window) Maximize() {
+	if !w.IsResizable() {
+		panic("glfw: a window to maximize must be resizable")
+	}
 	if !w.ui.isRunning() {
 		w.ui.setInitWindowMaximized(true)
 		return
diff --git a/window.go b/window.go
index 53ab1df33..e00c5cd60 100644
--- a/window.go
+++ b/window.go
@@ -262,12 +262,15 @@ func SetWindowFloating(float bool) {
 
 // MaximizeWindow maximizes the window.
 //
-// On some environments like macOS, MaximizeWindow requres that the window is resizable.
+// MaximizeWindow panics when the window is not resizable.
 //
 // MaximizeWindow does nothing on browsers or mobiles.
 //
 // MaximizeWindow is concurrent-safe.
 func MaximizeWindow() {
+	if !IsWindowResizable() {
+		panic("ebiten: a window to maximize must be resizable")
+	}
 	if w := uiDriver().Window(); w != nil {
 		w.Maximize()
 	}