diff --git a/runtime/queries/p/highlights.scm b/runtime/queries/p/highlights.scm
index 2381ef6e..7793bcef 100644
--- a/runtime/queries/p/highlights.scm
+++ b/runtime/queries/p/highlights.scm
@@ -2,6 +2,9 @@
 (iden_type
   name: (identifier) @variable)
 
+(fun_param
+  name: (identifier) @variable.parameter)
+
 [
  "this"
  ] @variable.builtin
diff --git a/runtime/queries/p/locals.scm b/runtime/queries/p/locals.scm
new file mode 100644
index 00000000..5a0ff0fa
--- /dev/null
+++ b/runtime/queries/p/locals.scm
@@ -0,0 +1,19 @@
+; Scopes
+
+[
+  (p_fun_decl)
+  (anon_event_handler)
+  (foreign_fun_decl)
+  (pure_decl)
+  (quant_expr)
+] @local.scope
+
+; Definitions
+
+(fun_param
+  name: (identifier) @local.definition.variable.parameter)
+
+; References
+
+(primitive_expr (identifier) @local.reference)
+(var_lvalue name: (identifier) @local.reference)
diff --git a/tests/query/highlights/p/locals.p b/tests/query/highlights/p/locals.p
new file mode 100644
index 00000000..6231dfb0
--- /dev/null
+++ b/tests/query/highlights/p/locals.p
@@ -0,0 +1,20 @@
+fun Add(x: int, y: int) : int {
+//      ^ @variable.parameter
+//              ^ @variable.parameter
+//  ^ @function
+//  ^ !@variable.parameter
+  return x + y;
+//       ^ @variable.parameter
+//           ^ @variable.parameter
+}
+
+machine M {
+  start state Init {
+    entry (payload: int) {
+//         ^ @variable.parameter
+      payload = payload + 1;
+//    ^ @variable.parameter
+//              ^ @variable.parameter
+    }
+  }
+}