diff --git a/buildenv/jenkins/JenkinsfileBase b/buildenv/jenkins/JenkinsfileBase
index 8347747e64..739b1d3fdd 100644
--- a/buildenv/jenkins/JenkinsfileBase
+++ b/buildenv/jenkins/JenkinsfileBase
@@ -75,7 +75,7 @@ def setupEnv() {
 	env.EXTRA_DOCKER_ARGS = params.EXTRA_DOCKER_ARGS ? params.EXTRA_DOCKER_ARGS : ""
 	env.OPENJDK_SHA = params.OPENJDK_SHA ? params.OPENJDK_SHA : ""
 	env.TEST_FLAG = params.TEST_FLAG ? params.TEST_FLAG : ''
-	env.KEEP_REPORTDIR = params.KEEP_REPORTDIR ? params.KEEP_REPORTDIR : ''
+	env.KEEP_REPORTDIR = params.KEEP_REPORTDIR ? params.KEEP_REPORTDIR : false
 	SDK_RESOURCE = params.SDK_RESOURCE ? params.SDK_RESOURCE : "upstream"
 	env.AUTO_DETECT = params.AUTO_DETECT