diff --git a/app/internal/egl/egl.go b/app/internal/egl/egl.go
index 55862036..ec295eb0 100644
--- a/app/internal/egl/egl.go
+++ b/app/internal/egl/egl.go
@@ -107,10 +107,6 @@ func (c *Context) Functions() *gl.Functions {
 	return c.c
 }
 
-func (c *Context) Lock() {}
-
-func (c *Context) Unlock() {}
-
 func (c *Context) ReleaseSurface() {
 	if c.eglSurf == nilEGLSurface {
 		return
diff --git a/app/internal/window/egl_android.go b/app/internal/window/egl_android.go
index a1d3cbe5..19c8d63e 100644
--- a/app/internal/window/egl_android.go
+++ b/app/internal/window/egl_android.go
@@ -48,3 +48,7 @@ func (c *context) MakeCurrent() error {
 	}
 	return nil
 }
+
+func (c *context) Lock() {}
+
+func (c *context) Unlock() {}
diff --git a/app/internal/window/egl_wayland.go b/app/internal/window/egl_wayland.go
index aed283ee..e9bee4ae 100644
--- a/app/internal/window/egl_wayland.go
+++ b/app/internal/window/egl_wayland.go
@@ -67,3 +67,7 @@ func (c *context) MakeCurrent() error {
 	}
 	return c.Context.MakeCurrent()
 }
+
+func (c *context) Lock() {}
+
+func (c *context) Unlock() {}
diff --git a/app/internal/window/egl_windows.go b/app/internal/window/egl_windows.go
index 38f88c5f..845707fa 100644
--- a/app/internal/window/egl_windows.go
+++ b/app/internal/window/egl_windows.go
@@ -42,3 +42,7 @@ func (c *context) MakeCurrent() error {
 	c.Context.EnableVSync(true)
 	return nil
 }
+
+func (c *context) Lock() {}
+
+func (c *context) Unlock() {}
diff --git a/app/internal/window/egl_x11.go b/app/internal/window/egl_x11.go
index c644ffea..c022fa96 100644
--- a/app/internal/window/egl_x11.go
+++ b/app/internal/window/egl_x11.go
@@ -44,3 +44,7 @@ func (c *x11Context) MakeCurrent() error {
 	c.Context.EnableVSync(true)
 	return nil
 }
+
+func (c *x11Context) Lock() {}
+
+func (c *x11Context) Unlock() {}