diff --git a/sonar-project.properties b/sonar-project.properties
index a5c3f0a..eb4df4a 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -4,7 +4,7 @@ sonar.organization=przemek83
 sonar.projectName=eible
 sonar.projectVersion=1.0
 
-sonar.sources=src
+sonar.sources=src,include
 sonar.tests=tests
 
 sonar.sourceEncoding=UTF-8