diff --git a/src/lang/Nub.Lang/Backend/Generator.cs b/src/lang/Nub.Lang/Backend/Generator.cs
index 5394d73..3b92ed9 100644
--- a/src/lang/Nub.Lang/Backend/Generator.cs
+++ b/src/lang/Nub.Lang/Backend/Generator.cs
@@ -451,9 +451,16 @@ public class Generator
         Debug.Assert(structType != null);
         
         var structDefinition = LookupStructDefinition(structType.Namespace, structType.Name);
+        var offset = LookupStructOffset(structDefinition, memberAssignment.MemberAccess.Member);
+
         var item = GenerateExpression(memberAssignment.MemberAccess.Expression);
+        var offsetName = GenVarName();
+        
+        _builder.AppendLine($"    %{offsetName} =l add {item}, {offset}");
+
         var value = GenerateExpression(memberAssignment.Value);
 
+        throw new NotImplementedException();
     }
 
     private void GenerateReturn(ReturnNode @return)
@@ -1441,23 +1448,26 @@ public class Generator
                     return $"%{outputName}";
                 }
 
-                break;
+                throw new ArgumentOutOfRangeException(nameof(memberAccess.Member));
             }
             case NubStructType structType:
             {
                 var structDefinition = LookupStructDefinition(structType.Namespace, structType.Name);
+                var offset = LookupStructOffset(structDefinition, memberAccess.Member);
 
                 var offsetName = GenVarName();
-                _builder.AppendLine($"    %{offsetName} =l add {item}, {LookupStructOffset(structDefinition, memberAccess.Member)}");
+                _builder.AppendLine($"    %{offsetName} =l add {item}, {offset}");
 
                 var outputName = GenVarName();
                 _builder.AppendLine($"    %{outputName} ={SQT(memberAccess.Type)} load{SQT(memberAccess.Type)} %{offsetName}");
 
                 return $"%{outputName}";
             }
+            default:
+            {
+                throw new ArgumentOutOfRangeException(nameof(memberAccess.Expression.Type));
+            }
         }
-
-        throw new ArgumentOutOfRangeException(nameof(memberAccess.Expression.Type));
     }
 
     private string GenerateFuncCall(FuncCallNode funcCall)