diff --git a/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Declarations.cs b/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Declarations.cs
index 2e87da675..4f6015ee7 100644
--- a/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Declarations.cs
+++ b/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Declarations.cs
@@ -133,6 +133,12 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Msl
 
                     context.EnterScope();
 
+                    if (context.Definitions.Stage == ShaderStage.Fragment)
+                    {
+                        // TODO: check if it's needed
+                        context.AppendLine("float4 position [[position]];");
+                    }
+
                     foreach (var ioDefinition in inputs.OrderBy(x => x.Location))
                     {
                         string type = GetVarTypeName(context, context.Definitions.GetUserDefinedType(ioDefinition.Location, isOutput: false));
diff --git a/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Instructions/IoMap.cs b/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Instructions/IoMap.cs
index 2ec7a1779..9ead6bc56 100644
--- a/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Instructions/IoMap.cs
+++ b/src/Ryujinx.Graphics.Shader/CodeGen/Msl/Instructions/IoMap.cs
@@ -30,6 +30,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Msl.Instructions
                 IoVariable.UserDefined => GetUserDefinedVariableName(definitions, location, component, isOutput, isPerPatch),
                 IoVariable.VertexId => ("vertex_id", AggregateType.S32),
                 IoVariable.ViewportIndex => ("viewport_array_index", AggregateType.S32),
+                IoVariable.FragmentCoord => ("in.position", AggregateType.Vector4 | AggregateType.FP32),
                 _ => (null, AggregateType.Invalid),
             };
         }