diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e9865b..1a5d009 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 - Add support for configurable formatters with `--format` CLI parameter / `format` config attribute.
 - Add support for JSON formatting with `--format json --quiet`.
 - Add new `stylish` reporter and make it the default. `compact` is still available via `--format compact`.
+- Add codes for rules – `indent` and `parse-error` for the two existing checks.
 
 ## [v0.7.0](https://github.com/thibaudcolas/curlylint/releases/tag/v0.7.0) 2020-04-16
 
diff --git a/curlylint/formatters/json.py b/curlylint/formatters/json.py
index c2e8c8b..27af005 100644
--- a/curlylint/formatters/json.py
+++ b/curlylint/formatters/json.py
@@ -23,6 +23,7 @@ def format_json(issues: List["Issue"]):
                 "line": issue.location.line,
                 "column": issue.location.column,
                 "message": issue.message,
+                "code": issue.code,
             }
         )
 
diff --git a/curlylint/formatters/stylish.py b/curlylint/formatters/stylish.py
index 431f170..1773a50 100644
--- a/curlylint/formatters/stylish.py
+++ b/curlylint/formatters/stylish.py
@@ -22,5 +22,5 @@ def format_stylish(issues: List["Issue"]):
             loc = click.style(
                 f"{issue.location.line}:{issue.location.column}", dim=True
             )
-            print(f"{loc}\t{issue.message}")
+            print(f"{loc}\t{issue.message}\t{issue.code}")
         print("")
diff --git a/curlylint/issue.py b/curlylint/issue.py
index 5d960fe..a0c7e83 100644
--- a/curlylint/issue.py
+++ b/curlylint/issue.py
@@ -28,13 +28,16 @@ def from_ast(file_path, ast_location):
 class Issue:
     location = attr.ib()
     message = attr.ib()
+    code = attr.ib()
 
     def __str__(self):
-        return "{}: {}".format(self.location, self.message)
+        return f"{self.location}: {self.message} ({self.code})"
 
     def __attrs_post_init__(self):
         assert isinstance(self.location, IssueLocation)
 
     @staticmethod
-    def from_ast(file_path, ast_location, message):
-        return Issue(IssueLocation.from_ast(file_path, ast_location), message)
+    def from_ast(file_path, ast_location, message, code):
+        return Issue(
+            IssueLocation.from_ast(file_path, ast_location), message, code
+        )
diff --git a/curlylint/lint.py b/curlylint/lint.py
index e3caa29..68b4cdd 100644
--- a/curlylint/lint.py
+++ b/curlylint/lint.py
@@ -32,7 +32,7 @@ def parse_file(path_and_config):
         return [], file
     except parsy.ParseError as error:
         location = get_parsy_error_location(error, path)
-        issue = Issue(location, "Parse error: " + str(error))
+        issue = Issue(location, "Parse error: " + str(error), "parse-error")
         return [issue], None
 
 
diff --git a/curlylint/rules/indent/indent.py b/curlylint/rules/indent/indent.py
index 162ee82..f6f5c73 100644
--- a/curlylint/rules/indent/indent.py
+++ b/curlylint/rules/indent/indent.py
@@ -6,6 +6,8 @@
 WHITESPACE_INDENT_RE = re.compile(r"^\s*")
 INDENT_RE = re.compile("^ *")
 
+INDENT = "indent"
+
 RULE = {
     "type": "layout",
     "docs": {
@@ -57,7 +59,7 @@ def check_indentation(file, config):
     issues = []
 
     def add_issue(location, msg):
-        issues.append(Issue.from_ast(file, location, msg))
+        issues.append(Issue.from_ast(file, location, msg, INDENT))
 
     def check_indent(expected_level, node, inline=False, allow_same_line=False):
         node_level = get_indent_level(file.source, node)
@@ -345,7 +347,7 @@ def check_space_only_indent(file, config):
         indent = WHITESPACE_INDENT_RE.match(line).group(0)
         if not contains_exclusively(indent, " "):
             loc = IssueLocation(file_path=file.path, line=i, column=0)
-            issue = Issue(loc, "Should be indented with spaces")
+            issue = Issue(loc, "Should be indented with spaces", INDENT)
             issues.append(issue)
     return issues