diff --git a/CLI_ARGS.md b/CLI_ARGS.md
index 20285aff..baf7a6b0 100644
--- a/CLI_ARGS.md
+++ b/CLI_ARGS.md
@@ -15,7 +15,7 @@
 | ------ | ----------- |
 | `--sonar-project-base-dir`, `-Dsonar.projectBaseDir` | Directory containing the project to be analyzed. Default is the current directory |
 | `--sonar-project-description`, `-Dsonar.projectDescription` | Description of the project |
-| `--sonar-project-key`, `-Dsonar.projectKey` | Key of the project that usually corresponds to the project name in SonarQube |
+| `--sonar-project-key`, `--project-key`, `-Dsonar.projectKey` | Key of the project that usually corresponds to the project name in SonarQube |
 | `--sonar-project-name`, `-Dsonar.projectName` | Name of the project in SonarQube |
 | `--sonar-project-version`, `-Dsonar.projectVersion` | Version of the project |
 | `--sonar-sources`, `-Dsonar.sources` | The analysis scope for main source code (non-test code) in the project |
diff --git a/src/pysonar_scanner/configuration/cli.py b/src/pysonar_scanner/configuration/cli.py
index 70d5d7e0..1aa50a90 100644
--- a/src/pysonar_scanner/configuration/cli.py
+++ b/src/pysonar_scanner/configuration/cli.py
@@ -71,6 +71,7 @@ def __create_parser(cls):
         )
         parser.add_argument(
             "--sonar-project-key",
+            "--project-key",
             "-Dsonar.projectKey",
             type=str,
             help="Key of the project that usually corresponds to the project name in SonarQube",
diff --git a/tests/unit/test_configuration_cli.py b/tests/unit/test_configuration_cli.py
index 748d821a..96e5c8ee 100644
--- a/tests/unit/test_configuration_cli.py
+++ b/tests/unit/test_configuration_cli.py
@@ -181,7 +181,7 @@ def test_minimal_cli_args(self):
 
     def test_alternative_cli_args(self):
         alternatives = [
-            ["-t", "myToken", "-v", "--sonar-project-key", "myProjectKey"],
+            ["-t", "myToken", "-v", "--project-key", "myProjectKey"],
             ["--sonar-token", "myToken", "--sonar-verbose", "--sonar-project-key", "myProjectKey"],
         ]
         for alternative in alternatives: