diff --git a/lighting/f_shader.glsl b/lighting/f_shader.glsl
index abca9aa..35dc833 100644
--- a/lighting/f_shader.glsl
+++ b/lighting/f_shader.glsl
@@ -1,4 +1,10 @@
 
+#ifdef GL_FRAGMENT_PRECISION_HIGH
+precision highp float;
+#else
+precision mediump float;
+#endif
+
 uniform vec4 ambient, diffuse, specular;
 uniform float shininess;