diff --git a/autoload/ale/handlers/gcc.vim b/autoload/ale/handlers/gcc.vim
index 09a1848d..eb42b27a 100644
--- a/autoload/ale/handlers/gcc.vim
+++ b/autoload/ale/handlers/gcc.vim
@@ -99,17 +99,12 @@ function! ale#handlers#gcc#HandleGCCFormat(buffer, lines) abort
                 continue
             endif
 
-            let l:obj = {
+            call add(l:output, {
             \   'lnum': l:match[2] + 0,
             \   'col': l:match[3] + 0,
             \   'type': l:match[4] =~# 'error' ? 'E' : 'W',
             \   'text': s:RemoveUnicodeQuotes(l:match[5]),
-            \}
-
-            " clang++ and some other tools can output duplicated errors.
-            if empty(l:output) || l:output[-1] != l:obj
-                call add(l:output, l:obj)
-            endif
+            \})
         endif
     endfor
 
diff --git a/test/handler/test_gcc_handler.vader b/test/handler/test_gcc_handler.vader
index 2934bbee..72b7c541 100644
--- a/test/handler/test_gcc_handler.vader
+++ b/test/handler/test_gcc_handler.vader
@@ -94,29 +94,3 @@ Execute(The GCC handler shouldn't complain about #pragma once for headers):
   \ ale#handlers#gcc#HandleGCCFormat(347, [
   \   '<stdin>:1:1: warning: #pragma once in main file [enabled by default]',
   \ ])
-
-Execute(The GCC handler should eliminate duplicated clang errors):
-  AssertEqual
-  \ [
-  \   {'lnum': 2, 'col': 10, 'type': 'E', 'text': '''a.h'' file not found'},
-  \   {'lnum': 4, 'col': 10, 'type': 'E', 'text': 'empty filename'},
-  \ ],
-  \ ale#handlers#gcc#HandleGCCFormat(347, [
-  \ '<stdin>:2:10: fatal error: ''a.h'' file not found',
-  \ '#include "a.h"',
-  \ '         ^~~~~',
-  \ '',
-  \ '<stdin>:2:10: fatal error: ''a.h'' file not found',
-  \ '#include "a.h"',
-  \ '         ^~~~~',
-  \ '',
-  \ '<stdin>:4:10: error: empty filename',
-  \ '',
-  \ '<stdin>:4:10: error: empty filename',
-  \ '#include ""',
-  \ '         ^',
-  \ '',
-  \ '<stdin>:4:10: error: empty filename',
-  \ '#include ""',
-  \ '         ^',
-  \ ])