diff --git a/Jenkinsfile b/Jenkinsfile
index fa3f791..7e7a422 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,56 +1,56 @@
 pipeline {
     agent {
 	dockerfile { additionalBuildArgs '--tag tamaas-environment'}
     }
 
     triggers {
         pollSCM('H/15 * * * *')
     }
 
     stages {
 	stage('Configure') {
 	    steps {
 		//sh 'git submodule update --init --recursive'
 		sh 'echo "py_exec = \'python3\'" > build-setup.conf'
 		sh 'echo "build_python = \'true\'" >> build-setup.conf'
 		sh 'echo "build_tests = \'true\'" >> build-setup.conf'
 		sh 'echo "use_googletest = \'true\'" >> build-setup.conf'
 	    }
 	}
 
 	stage('Compile') {
 	    steps {
-		sh 'rm -rf build-release'
+		sh 'rm -rf build-release .sconf_temp .sconsign.dblite'
 		sh 'scons'
 	    }
 	}
 
 	stage('Run tests') {
 	    steps {
 		sh 'PYTHONPATH=build-release/python/ python -m pytest --junitxml=results.xml build-release'
 	    }
 	}
     }
 
     post {
         always {
 	    junit 'results.xml'
 	    step([$class: 'XUnitBuilder',
 	        thresholds: [
 	            [$class: 'SkippedThreshold', failureThreshold: '0'],
 	            [$class: 'FailedThreshold', failureThreshold: '0']],
 	            tools: [[$class: 'GoogleTestType', pattern: 'build-release/tests/gtest_results.xml']]])
 	}
 
 	failure {
 	  emailext(
 	    body: '''${SCRIPT, template="groovy-html.template"}''',
 	    mimeType: 'text/html',
 	    subject: "[Jenkins] ${currentBuild.fullDisplayName} Failed",
 	    recipientProviders: [[$class: 'CulpritsRecipientProvider']],
 	    to: 'lucas.frerot@epfl.ch',
 	    attachLog: true,
 	    compressLog: true)
 	}
     }
 }