diff --git a/parser/parser.yy b/parser/parser.yy
index 49b3874..de1e62b 100644
--- a/parser/parser.yy
+++ b/parser/parser.yy
@@ -93,9 +93,22 @@ primitive_type: BYTE
               | ULONG
               ;
 
-struct_type: STRUCT
+struct_type: STRUCT LCURLY struct_items RCURLY
            ;
 
+struct_items: /* empty */
+            | struct_item struct_items
+            ;
+
+struct_item: variable_declaration
+           ;
+
+variable_declaration: variable_spec SEMICOLON;
+                    ;
+
+variable_spec: IDENTIFIER COLON type 
+             ;
+
 ptr_type: type STAR
         ;