diff --git a/dist/index.js b/dist/index.js
index 8f07a29..e90c339 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -121,9 +121,6 @@ const fs = __webpack_require__(747);
 const os = __webpack_require__(87);
 
 try {
-
-    const home = os.homedir();
-    const homeSsh = home + '/.ssh';
     const privateKey = core.getInput('ssh-private-key');
 
     if (!privateKey) {
@@ -132,11 +129,21 @@ try {
         return;
     }
 
+    var home;
+
     if (process.env['OS'] == 'Windows_NT') {
         console.log('Preparing ssh-agent service on Windows');
         child_process.execSync('sc config ssh-agent start=demand', { stdio: 'inherit' });
+
+        home = os.homedir();
+    } else {
+        // Use getent() system call, since this is what ssh does; makes a difference in Docker-based
+        // Action runs, where $HOME is different from the pwent
+        var { homedir: home } = os.userInfo();
     }
 
+    const homeSsh = home + '/.ssh';
+
     console.log(`Adding GitHub.com keys to ${homeSsh}/known_hosts`);
     fs.mkdirSync(homeSsh, { recursive: true });
     fs.appendFileSync(`${homeSsh}/known_hosts`, '\ngithub.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==\n');
diff --git a/index.js b/index.js
index 52dbb1c..c4f5049 100644
--- a/index.js
+++ b/index.js
@@ -4,9 +4,6 @@ const fs = require('fs');
 const os = require('os');
 
 try {
-
-    const home = os.homedir();
-    const homeSsh = home + '/.ssh';
     const privateKey = core.getInput('ssh-private-key');
 
     if (!privateKey) {
@@ -15,11 +12,21 @@ try {
         return;
     }
 
+    var home;
+
     if (process.env['OS'] == 'Windows_NT') {
         console.log('Preparing ssh-agent service on Windows');
         child_process.execSync('sc config ssh-agent start=demand', { stdio: 'inherit' });
+
+        home = os.homedir();
+    } else {
+        // Use getent() system call, since this is what ssh does; makes a difference in Docker-based
+        // Action runs, where $HOME is different from the pwent
+        var { homedir: home } = os.userInfo();
     }
 
+    const homeSsh = home + '/.ssh';
+
     console.log(`Adding GitHub.com keys to ${homeSsh}/known_hosts`);
     fs.mkdirSync(homeSsh, { recursive: true });
     fs.appendFileSync(`${homeSsh}/known_hosts`, '\ngithub.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==\n');