diff --git a/sonar-project.properties b/sonar-project.properties
index 5885ad0..620a2de 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,5 +1,5 @@
 # must be unique in a given SonarQube instance
-sonar.projectKey=CptArn Homepage
+sonar.projectKey=CptArn-Homepage
 # this is the name and version displayed in the SonarQube UI. Was mandatory prior to SonarQube 6.1.
 sonar.projectName=CptArn Homepage
 sonar.projectVersion=20.x.x