diff --git a/config/SharedConfig.ts b/config/SharedConfig.ts
index 0f8f8b0397b4a855f9a761934e7a37f5a9e6b9a3..5bd7b65bddf9e0441d51bf269c37f0cbfb8fa80f 100644
--- a/config/SharedConfig.ts
+++ b/config/SharedConfig.ts
@@ -22,21 +22,21 @@ class SharedConfig {
     constructor() {
         this.production = process.env.NODE_ENV === 'production';
 
-        this.logsFolder = process.env.LOGS_FOLDER || '';
+        this.logsFolder = process.env.LOGS_FOLDER ?? '';
 
         this.gitlab = {
-            URL   : process.env.GITLAB_URL || '',
-            apiURL: process.env.GITLAB_API_URL || ''
+            URL   : process.env.GITLAB_URL ?? '',
+            apiURL: process.env.GITLAB_API_URL ?? ''
         };
 
         this.login = {
             gitlab: {
                 client: {
-                    id: process.env.LOGIN_GITLAB_CLIENT_ID || ''
+                    id: process.env.LOGIN_GITLAB_CLIENT_ID ?? ''
                 },
                 url   : {
-                    redirect: process.env.LOGIN_GITLAB_URL_REDIRECT || '',
-                    token   : process.env.LOGIN_GITLAB_URL_TOKEN || ''
+                    redirect: process.env.LOGIN_GITLAB_URL_REDIRECT ?? '',
+                    token   : process.env.LOGIN_GITLAB_URL_TOKEN ?? ''
                 }
             }
         };