diff --git a/drape/shaders/line_fragment_shader.fsh b/drape/shaders/line_fragment_shader.fsh
index 21ebd11ebc..6bef70eb4e 100644
--- a/drape/shaders/line_fragment_shader.fsh
+++ b/drape/shaders/line_fragment_shader.fsh
@@ -4,12 +4,14 @@ varying vec2 v_halfLength;
 uniform sampler2D u_colorTex;
 uniform float u_opacity;
 
+const float aaPixelsCount = 2.0;
+
 void main(void)
 {
   vec4 color = texture2D(u_colorTex, v_colorTexCoord);
   color.a *= u_opacity;
   float currentW = abs(v_halfLength.x);
   float diff = v_halfLength.y - currentW;
-  color.a *= mix(0.3, 1.0, clamp(diff / 2.0, 0.0, 1.0));
+  color.a *= mix(0.3, 1.0, clamp(diff / aaPixelsCount, 0.0, 1.0));
   gl_FragColor = color;
 }