diff --git a/README.md b/README.md
index d0d68fef..a9274a5b 100644
--- a/README.md
+++ b/README.md
@@ -219,7 +219,8 @@ But if you wish to select or exclude specific linters, we give you full control
 | **ERROR_ON_MISSING_EXEC_BIT**      | `false`                         | If set to `false`, the `bash-exec` linter will report a warning if a shell script is not executable. If set to `true`, the `bash-exec` linter will report an error instead.                                          |
 | **FILTER_REGEX_EXCLUDE**           | `none`                          | Regular expression defining which files will be excluded from linting  (ex: `.*src/test.*`)                                                                                                                          |
 | **FILTER_REGEX_INCLUDE**           | `all`                           | Regular expression defining which files will be processed by linters (ex: `.*src/.*`)                                                                                                                                |
-| **GITHUB_DOMAIN**                  | `github.com`                          | Specify a custom Github domain in case Github Enterprise is used: e.g. `github.myenterprise.com` |
+| **GITHUB_DOMAIN**                  | `github.com`                    | Specify a custom Github domain in case Github Enterprise is used: e.g. `github.myenterprise.com` |
+| **GITHUB_CUSTOM_API_URL**          | `api.github.com`                | Specify a custom Github API URL in case Github Enterprise is used: e.g. `https://github.myenterprise.com/api/v3/`|
 | **IGNORE_GITIGNORED_FILES**        | `false`                         | If set to `true`, super-linter will ignore all the files that are ignored by Git.                                                                                                                                    |
 | **JAVASCRIPT_ES_CONFIG_FILE**      | `.eslintrc.yml`                 | Filename for [eslint configuration](https://eslint.org/docs/user-guide/configuring#configuration-file-formats) (ex: `.eslintrc.yml`, `.eslintrc.json`)                                                               |
 | **JAVASCRIPT_DEFAULT_STYLE**       | `standard`                      | Flag to set the default style of javascript. Available options: **standard**/**prettier**                                                                                                                            |
diff --git a/lib/linter.sh b/lib/linter.sh
index 179e9af0..8841f6a7 100755
--- a/lib/linter.sh
+++ b/lib/linter.sh
@@ -64,11 +64,11 @@ source /action/lib/functions/linterVersions.sh # Source the function script(s)
 # GLOBALS #
 ###########
 # Default Vars
-DEFAULT_RULES_LOCATION='/action/lib/.automation'          # Default rules files location
-LINTER_RULES_PATH="${LINTER_RULES_PATH:-.github/linters}" # Linter Path Directory
-GITHUB_API_URL='https://api.github.com'                   # GitHub API root url
-VERSION_FILE='/action/lib/functions/linterVersions.txt'   # File to store linter versions
-export VERSION_FILE                                       # Workaround SC2034
+DEFAULT_RULES_LOCATION='/action/lib/.automation'                    # Default rules files location
+LINTER_RULES_PATH="${LINTER_RULES_PATH:-.github/linters}"           # Linter Path Directory
+GITHUB_API_URL="${GITHUB_CUSTOM_API_URL:-"https://api.github.com"}" # GitHub API root url
+VERSION_FILE='/action/lib/functions/linterVersions.txt'             # File to store linter versions
+export VERSION_FILE                                                 # Workaround SC2034
 
 ###############
 # Rules files #