diff --git a/Jenkinsfile b/Jenkinsfile
index c11c66fc7b..45b5f506b7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -190,8 +190,8 @@ void withPublishEnivronment(Closure<Void> closure) {
     usernamePassword(credentialsId: 'hub.docker.com-cesmarvin', usernameVariable: 'ORG_GRADLE_PROJECT_dockerUsername', passwordVariable: 'ORG_GRADLE_PROJECT_dockerPassword'),
     usernamePassword(credentialsId: 'cesmarvin-github', usernameVariable: 'ORG_GRADLE_PROJECT_gitHubUsername', passwordVariable: 'ORG_GRADLE_PROJECT_gitHubApiToken'),
     string(credentialsId: 'cesmarvin_npm_token', variable: 'ORG_GRADLE_PROJECT_npmToken'),
-    file(credentialsId: 'oss-gpg-secring', variable: 'ORG_GRADLE_PROJECT_signing.secretKeyRingFile'),
-    usernamePassword(credentialsId: 'oss-keyid-and-passphrase', usernameVariable: 'ORG_GRADLE_PROJECT_signing.keyId', passwordVariable: 'ORG_GRADLE_PROJECT_signing.password')
+    file(credentialsId: 'oss-gpg-secring', variable: 'GPG_KEY_RING'),
+    usernamePassword(credentialsId: 'oss-keyid-and-passphrase', usernameVariable: 'GPG_KEY_ID', passwordVariable: 'GPG_KEY_PASSWORD')
   ]) {
     withEnv(["ORG_GRADLE_PROJECT_npmEmail=cesmarvin@cloudogu.com"]) {
       closure.call()
diff --git a/build.gradle b/build.gradle
index a4551da3dc..a59d812c6f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -149,6 +149,20 @@ project.ext {
   isCI = isRunningOnCiServer()
   os = os()
   arch = arch()
+
+  // map signing environment variables
+  // this is required because of environment variables should not have a dot in the name
+  // but the gradle signing props are using dots
+  // also we use the set method, because setting props with dots works neither
+  if (isEnvAvailable("GPG_KEY_RING")) {
+    set('signing.secretKeyRingFile', System.getenv("GPG_KEY_RING"))
+  }
+  if (isEnvAvailable("GPG_KEY_ID")) {
+    set('signing.keyId', System.getenv("GPG_KEY_ID"))
+  }
+  if (isEnvAvailable("GPG_KEY_PASSWORD")) {
+    set('signing.password', System.getenv("GPG_KEY_PASSWORD"))
+  }
 }
 
 publishing {