diff --git a/ale_linters/python/flake8.vim b/ale_linters/python/flake8.vim
index 501db0b..480e605 100644
--- a/ale_linters/python/flake8.vim
+++ b/ale_linters/python/flake8.vim
@@ -94,7 +94,8 @@ function! ale_linters#python#flake8#Handle(buffer, lines) abort
         let l:item = {
         \   'lnum': l:match[1] + 0,
         \   'col': l:match[2] + 0,
-        \   'text': l:code . ': ' . l:match[4],
+        \   'text': l:match[4],
+        \   'code': l:code,
         \   'type': 'W',
         \}
 
diff --git a/test/handler/test_flake8_handler.vader b/test/handler/test_flake8_handler.vader
index 0d6d65f..d8cb51b 100644
--- a/test/handler/test_flake8_handler.vader
+++ b/test/handler/test_flake8_handler.vader
@@ -11,21 +11,24 @@ Execute(The flake8 handler should handle basic warnings and syntax errors):
   \     'lnum': 6,
   \     'col': 6,
   \     'type': 'E',
-  \     'text': 'E111: indentation is not a multiple of four',
+  \     'text': 'indentation is not a multiple of four',
+  \     'code': 'E111',
   \     'sub_type': 'style',
   \   },
   \   {
   \     'lnum': 7,
   \     'col': 6,
   \     'type': 'W',
-  \     'text': 'W123: some warning',
+  \     'text': 'some warning',
+  \     'code': 'W123',
   \     'sub_type': 'style',
   \   },
   \   {
   \     'lnum': 8,
   \     'col': 3,
   \     'type': 'E',
-  \     'text': 'E999: SyntaxError: invalid syntax',
+  \     'text': 'SyntaxError: invalid syntax',
+  \     'code': 'E999',
   \   },
   \ ],
   \ ale_linters#python#flake8#Handle(1, [
@@ -42,35 +45,40 @@ Execute(The flake8 handler should set end column indexes should be set for certa
   \     'col': 1,
   \     'type': 'E',
   \     'end_col': 3,
-  \     'text': 'F821: undefined name ''foo''',
+  \     'text': 'undefined name ''foo''',
+  \     'code': 'F821',
   \   },
   \   {
   \     'lnum': 28,
   \     'col': 5,
   \     'type': 'E',
   \     'end_col': 9,
-  \     'text': 'F405: hello may be undefined, or defined from star imports: x',
+  \     'text': 'hello may be undefined, or defined from star imports: x',
+  \     'code': 'F405',
   \   },
   \   {
   \     'lnum': 104,
   \     'col': 5,
   \     'type': 'E',
   \     'end_col': 12,
-  \     'text': 'F999: ''continue'' not properly in loop',
+  \     'text': '''continue'' not properly in loop',
+  \     'code': 'F999',
   \   },
   \   {
   \     'lnum': 106,
   \     'col': 5,
   \     'type': 'E',
   \     'end_col': 9,
-  \     'text': 'F999: ''break'' outside loop',
+  \     'text': '''break'' outside loop',
+  \     'code': 'F999',
   \   },
   \   {
   \     'lnum': 109,
   \     'col': 5,
   \     'type': 'E',
   \     'end_col': 8,
-  \     'text': 'F841: local variable ''test'' is assigned to but never used',
+  \     'text': 'local variable ''test'' is assigned to but never used',
+  \     'code': 'F841',
   \   },
   \ ],
   \ ale_linters#python#flake8#Handle(1, [
@@ -125,7 +133,8 @@ Execute (The flake8 handler should handle names with spaces):
   \     'lnum': 6,
   \     'col': 6,
   \     'type': 'E',
-  \     'text': 'E111: indentation is not a multiple of four',
+  \     'text': 'indentation is not a multiple of four',
+  \     'code': 'E111',
   \     'sub_type': 'style',
   \   },
   \ ],