diff --git a/dist/index.js b/dist/index.js
index 5fccd7d..661370a 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -163,6 +163,20 @@ module.exports = require("path");
 
 const core = __webpack_require__(827);
 
+/**
+ * Slugify a given string.
+ * @param {string} inputString
+ * @return {string} The slugified string.
+ */
+function slugify(inputString) {
+  return inputString
+      .toLowerCase()
+      .replace(/[^a-z0-9 -]/g, ' ') // remove invalid chars
+      .replace(/^\s+|\s+$/g, '') // trim
+      .replace(/\s+/g, '-') // collapse whitespace and replace by -
+      .replace(/-+/g, '-'); // collapse dashes
+}
+
 /**
  * Get the repository owner from the repository string.
  * @param {string} repository
@@ -204,14 +218,29 @@ try {
   // i.e. FranzDiebold/github-env-vars-action
   repository = process.env.GITHUB_REPOSITORY;
 
+  if (repository) {
+    core.exportVariable('GITHUB_REPOSITORY_SLUG', slugify(repository));
+    core.info(`Set GITHUB_REPOSITORY_SLUG=` +
+              `${process.env.GITHUB_REPOSITORY_SLUG}`);
+  } else {
+    core.warning('Environment variable "GITHUB_REPOSITORY" not set. ' +
+                 'Cannot set "GITHUB_REPOSITORY_SLUG".');
+  }
+
   repositoryOwner = getRepositoryOwner(repository);
   if (repositoryOwner) {
     core.exportVariable('GITHUB_REPOSITORY_OWNER', repositoryOwner);
     core.info(`Set GITHUB_REPOSITORY_OWNER=` +
               `${process.env.GITHUB_REPOSITORY_OWNER}`);
+
+    core.exportVariable('GITHUB_REPOSITORY_OWNER_SLUG',
+        slugify(repositoryOwner));
+    core.info(`Set GITHUB_REPOSITORY_OWNER_SLUG=` +
+              `${process.env.GITHUB_REPOSITORY_OWNER_SLUG}`);
   } else {
     core.warning('Environment variable "GITHUB_REPOSITORY" not set. ' +
-                 'Cannot set "GITHUB_REPOSITORY_OWNER".');
+                 'Cannot set "GITHUB_REPOSITORY_OWNER" and ' +
+                 '"GITHUB_REPOSITORY_OWNER_SLUG".');
   }
 
   repositoryName = getRepositoryName(repository);
@@ -219,19 +248,39 @@ try {
     core.exportVariable('GITHUB_REPOSITORY_NAME', repositoryName);
     core.info(`Set GITHUB_REPOSITORY_NAME=` +
               `${process.env.GITHUB_REPOSITORY_NAME}`);
+
+    core.exportVariable('GITHUB_REPOSITORY_NAME_SLUG',
+        slugify(repositoryName));
+    core.info(`Set GITHUB_REPOSITORY_NAME_SLUG=` +
+              `${process.env.GITHUB_REPOSITORY_NAME_SLUG}`);
   } else {
     core.warning('Environment variable "GITHUB_REPOSITORY" not set. ' +
-                 'Cannot set "GITHUB_REPOSITORY_NAME".');
+                 'Cannot set "GITHUB_REPOSITORY_NAME" and ' +
+                 '"GITHUB_REPOSITORY_NAME_SLUG".');
   }
 
   // i.e. refs/heads/feat/feature-branch-1
-  refName = getRefName(process.env.GITHUB_REF);
+  ref = process.env.GITHUB_REF;
+
+  if (ref) {
+    core.exportVariable('GITHUB_REF_SLUG', slufigy(ref));
+    core.info(`Set GITHUB_REF_SLUG=${process.env.GITHUB_REF_SLUG}`);
+  } else {
+    core.warning('Environment variable "GITHUB_REF" not set. ' +
+                 'Cannot set "GITHUB_REF_SLUG".');
+  }
+
+  refName = getRefName(ref);
   if (refName) {
     core.exportVariable('GITHUB_REF_NAME', refName);
     core.info(`Set GITHUB_REF_NAME=${process.env.GITHUB_REF_NAME}`);
+
+    core.exportVariable('GITHUB_REF_NAME_SLUG', slufigy(refName));
+    core.info(`Set GITHUB_REF_NAME_SLUG=${process.env.GITHUB_REF_NAME_SLUG}`);
   } else {
     core.warning('Environment variable "GITHUB_REF" not set. ' +
-                 'Cannot set "GITHUB_REF_NAME".');
+                 'Cannot set "GITHUB_REF_NAME" and ' +
+                 '"GITHUB_REF_NAME_SLUG".');
   }
 
   // i.e. ffac537e6cbbf934b08745a378932722df287a53
@@ -248,6 +297,7 @@ try {
 }
 
 module.exports = {
+  slugify,
   getRepositoryOwner,
   getRepositoryName,
   getRefName,