diff --git a/vars/jenkinsPipelineSkeleton.groovy b/vars/jenkinsPipelineSkeleton.groovy
index 41f617b..4d662ee 100644
--- a/vars/jenkinsPipelineSkeleton.groovy
+++ b/vars/jenkinsPipelineSkeleton.groovy
@@ -37,11 +37,11 @@ def call(String projectName, Map config) {
         post {
             success {
                 echo "Build for '${projectName}' was successful!"
-                sh 'curl -s -H "Cache: no" -d "${projectName} Build Successful" https://ntfy.konsthol.eu/General'
+                sh "curl -s -H 'Cache: no' -d '${projectName} Build Successful' https://ntfy.konsthol.eu/General"
             }
             failure {
                 echo "Build for '${projectName}' failed!"
-                sh 'curl -s -H "Cache: no" -d "${projectName} Build Failed" https://ntfy.konsthol.eu/General'
+                sh "curl -s -H 'Cache: no' -d '${projectName} Build Failed' https://ntfy.konsthol.eu/General"
             }
         }
     }