diff --git a/tree-sitter-p4/grammar.js b/tree-sitter-p4/grammar.js
index a921c8a..2497937 100644
--- a/tree-sitter-p4/grammar.js
+++ b/tree-sitter-p4/grammar.js
@@ -88,13 +88,14 @@ export default grammar({
         parserTransitionStatement: $ => seq($.transition, $.transitionSelectionExpression, $._semicolon),
 
         // Expressions
-        expression: $ => choice($.identifier, $.integer, $.booleanLiteralExpression, $.string_literal, $.binaryOperatorExpression, $.arrayAccessExpression), // Very limited.
+        expression: $ => choice($.identifier, $.integer, $.booleanLiteralExpression, $.string_literal, $.binaryOperatorExpression, $.arrayAccessExpression, $.fieldAccessExpression), // Very limited.
         booleanLiteralExpression: $ => choice($.true, $.false),
         selectExpression: $ => seq($.select, '(', $.expression, ')', '{', $.selectBody, '}'), // TODO: Should be expression list and not just a single expression
         transitionSelectionExpression: $ => choice($.identifier, $.selectExpression),
         keysetExpression: $ => $.expression,
         binaryOperatorExpression: $ => choice($.binaryEqualOperatorExpression),
         arrayAccessExpression: $=> seq($.expression, $.open_bracket, $.expression, $.close_bracket),
+        fieldAccessExpression: $=> prec.left(2, seq($.expression, $.field_access, $.identifier)),
 
         // Binary Operations
         binaryEqualOperatorExpression: $ => prec.left(2, seq($.expression, $.double_equal, $.expression)),
@@ -155,6 +156,7 @@ export default grammar({
         double_equal: $=> '==',
         open_bracket: $=> '[',
         close_bracket: $=> ']',
+        field_access: $=> '.',
     },
 }
 );
diff --git a/tree-sitter-p4/test/corpus/expressions.txt b/tree-sitter-p4/test/corpus/expressions.txt
index 29993f1..fb3cf34 100644
--- a/tree-sitter-p4/test/corpus/expressions.txt
+++ b/tree-sitter-p4/test/corpus/expressions.txt
@@ -117,6 +117,7 @@ parser simple() {
   )
  )
 )
+
 =========================
 Simple Array Access
 =========================
@@ -168,3 +169,107 @@ parser simple() {
   )
  )
 )
+
+=========================
+Simple Struct Access
+=========================
+parser simple() {
+  state start {
+    abc.xyz;
+    transition accept;
+  }
+};
+
+---
+(p4program
+ (declaration
+  (parserDeclaration
+   (parserType
+    (parser)
+    (identifier)
+   )
+   (parserStates
+    (parserState
+     (state)
+     (identifier)
+     (parserStatements
+      (parserStatement
+       (expressionStatement
+        (expression
+         (fieldAccessExpression
+          (expression
+           (identifier)
+          )
+          (field_access)
+          (identifier)
+         )
+        )
+       )
+      )
+     )
+     (parserTransitionStatement
+      (transition)
+      (transitionSelectionExpression
+       (identifier)
+      )
+     )
+    )
+   )
+  )
+ )
+)
+
+=========================
+Nested Struct Access
+=========================
+parser simple() {
+  state start {
+    abc.cde.xyz;
+    transition accept;
+  }
+};
+
+---
+(p4program
+ (declaration
+  (parserDeclaration
+   (parserType
+    (parser)
+    (identifier)
+   )
+   (parserStates
+    (parserState
+     (state)
+     (identifier)
+     (parserStatements
+      (parserStatement
+       (expressionStatement
+        (expression
+         (fieldAccessExpression
+          (expression
+           (fieldAccessExpression
+            (expression
+             (identifier)
+            )
+            (field_access)
+            (identifier)
+           )
+          )
+          (field_access)
+          (identifier)
+         )
+        )
+       )
+      )
+     )
+     (parserTransitionStatement
+      (transition)
+      (transitionSelectionExpression
+       (identifier)
+      )
+     )
+    )
+   )
+  )
+ )
+)