Shader compile error on }

Hello I'm trying to complete a shader tutorial. However when I try to compile my code I get a compile error on line 17. I can't find the difference in the code from the tutorial and my own. Is anyone able to see what I'm doing wrong?

 shader "tests/DiffuseSimple"{
 
     subshader{
         Tags{ "RenderType" = "Opaque" }
         
         CGPROGRAM
             #pragma suface surf Lambert
             struct Input
             {
                 float4 color: COLOR;
             };
             void surf (Input IN,inout SurfaceOutput o){
                 o.Albedo = IN.color;
             }
         ENDCG
         
     }
     
     Fallback "Diffuse"
 
 }