diff --git a/app/internal/egl/egl.go b/app/internal/egl/egl.go
index a70fe513..1af49e1d 100644
--- a/app/internal/egl/egl.go
+++ b/app/internal/egl/egl.go
@@ -219,7 +219,7 @@ func createContext(disp _EGLDisplay) (*eglContext, error) {
 			// https://bugs.freedesktop.org/show_bug.cgi?id=107782.
 			//
 			// Also, some Android devices (Samsung S9) needs alpha for sRGB to work.
-			attribs = append(attribs, _EGL_ALPHA_SIZE, 1)
+			attribs = append(attribs, _EGL_ALPHA_SIZE, 8)
 		}
 		// Only request a depth buffer if we're going to render directly to the framebuffer.
 		attribs = append(attribs, _EGL_DEPTH_SIZE, 16)