diff --git a/runtime/json.cpp b/runtime/json.cpp
index c677beb..18f7e8a 100644
--- a/runtime/json.cpp
+++ b/runtime/json.cpp
@@ -1,6 +1,7 @@
 #include "json.hpp"
 #include <cstdlib>
 #include <format>
+#include <iostream>
 #include <memory>
 #include <string>
 #include <unordered_map>
@@ -165,7 +166,7 @@ auto Parser::parse_val() -> Res<std::unique_ptr<Value>>
                 }
                 step();
                 auto value = parse_val();
-                if (value.ok()) {
+                if (not value.ok()) {
                     return value.err();
                 }
                 fields.insert_or_assign(key, std::move(value.val()));
@@ -183,7 +184,7 @@ auto Parser::parse_val() -> Res<std::unique_ptr<Value>>
                     }
                     step();
                     auto value = parse_val();
-                    if (value.ok()) {
+                    if (not value.ok()) {
                         return value.err();
                     }
                     fields.insert_or_assign(key, std::move(value.val()));
@@ -192,30 +193,32 @@ auto Parser::parse_val() -> Res<std::unique_ptr<Value>>
             if (curtyp() != TokTyp::RBrace) {
                 return unexpected_tok_err(TokTyp::RBrace, "malformed object");
             }
+            step();
             return Res<std::unique_ptr<Value>>(
                 std::make_unique<Object>(std::move(fields)));
         }
         case TokTyp::LBracket: {
             step();
             ArrayValues values;
-            if (curtyp() != TokTyp::RBrace) {
+            if (curtyp() != TokTyp::RBracket) {
                 auto value = parse_val();
-                if (value.ok()) {
+                if (not value.ok()) {
                     return value.err();
                 }
                 values.push_back(std::move(value.val()));
                 while (curtyp() == TokTyp::Comma) {
                     step();
                     auto value = parse_val();
-                    if (value.ok()) {
+                    if (not value.ok()) {
                         return value.err();
                     }
                     values.push_back(std::move(value.val()));
                 }
             }
-            if (curtyp() != TokTyp::RBrace) {
-                return unexpected_tok_err(TokTyp::RBrace, "malformed object");
+            if (curtyp() != TokTyp::RBracket) {
+                return unexpected_tok_err(TokTyp::RBracket, "malformed array");
             }
+            step();
             return Res<std::unique_ptr<Value>>(
                 std::make_unique<Array>(std::move(values)));
         }
diff --git a/runtime/json.hpp b/runtime/json.hpp
index e0bc595..7a0eb52 100644
--- a/runtime/json.hpp
+++ b/runtime/json.hpp
@@ -311,6 +311,7 @@ private:
         auto tok = this->lexer.next();
         if (not tok.ok())
             return tok.err();
+        this->cur = tok;
         return {};
     }
     inline auto curtyp() const -> TokTyp { return this->cur.val().typ; }