diff --git a/src/Commands/LocalizeCommand.php b/src/Commands/LocalizeCommand.php
index 2592cfb..ee7446d 100644
--- a/src/Commands/LocalizeCommand.php
+++ b/src/Commands/LocalizeCommand.php
@@ -16,7 +16,7 @@ class LocalizeCommand extends Command
      *
      * @var string
      */
-    protected $signature = 'localize {lang?}';
+    protected $signature = 'localize {lang?} {--c|ci : Returns a non zero code when some translations have been added.}';
 
     /**
      * The console command description.
@@ -65,7 +65,7 @@ public function handle(Localizator $localizator, Parser $parser): int
             "\nTranslatable strings have been generated for locale(s): ".implode(', ', $locales)
         );
 
-        return 0;
+        return $this->option("ci") && $parser->foundSomeKeys() ? 1 : 0;
     }
 
     /**
diff --git a/src/Services/Parser.php b/src/Services/Parser.php
index 145e504..74b652a 100644
--- a/src/Services/Parser.php
+++ b/src/Services/Parser.php
@@ -69,6 +69,11 @@ public function parseKeys(): void
             });
     }
 
+    public function foundSomeKeys(): bool
+    {
+        return ($this->defaultKeys->count() + $this->jsonKeys->count()) > 0;
+    }
+
     /**
      * @param $key
      * @return bool
diff --git a/tests/LocalizatorTest.php b/tests/LocalizatorTest.php
index 863edb2..3917024 100644
--- a/tests/LocalizatorTest.php
+++ b/tests/LocalizatorTest.php
@@ -165,4 +165,44 @@ public function testLocalizeCommandWhereKeysAreEscapedWithSlashes(): void
         // Cleanup.
         self::flushDirectories('lang', 'views');
     }
+
+    public function testLocalizeCommandReturnsNonZeroCodeWhenCiFlagIsOnAndSomeMissingTranslationsHaveBeenAdded(): void
+    {
+        $this->createTestView("{{ __('Hi mom') }}");
+
+        // Run localize command.
+        $this->artisan('localize', ['--ci' => true])
+            ->assertExitCode(1);
+
+        // Cleanup.
+        self::flushDirectories('lang', 'views');
+    }
+
+    public function testLocalizeCommandReturnsZeroCodeWhenCiFlagIsOnAndNoMissingTranslationsHaveBeenFound(): void
+    {
+        $this->createTestView("");
+
+        // Run localize command.
+        $this->artisan('localize', ['--ci' => true])
+            ->assertExitCode(0);
+
+        // Cleanup.
+        self::flushDirectories('lang', 'views');
+    }
+
+    public function testLocalizeCommandReturnsNonZeroCodeThenZeroCodeIfFileDidNotChangedBetweenTwoRun(): void
+    {
+        $this->createTestView("{{ __('Hi mom') }}");
+
+        // Run localize command.
+        $this->artisan('localize', ['--ci' => true])
+            ->assertExitCode(1);
+
+        // Run localize command.
+        $this->artisan('localize', ['--ci' => true])
+            ->assertExitCode(0);
+
+        // Cleanup.
+        self::flushDirectories('lang', 'views');
+    }
 }