diff --git a/Jenkinsfile b/Jenkinsfile
index 7e2a1904..b6a4f614 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -39,7 +39,7 @@ pipeline {
             description: 'Attempt "make check" in this run?',
             name: 'DO_TEST_CHECK')
         booleanParam (
-            defaultValue: true,
+            defaultValue: false,
             description: 'Attempt "make memcheck" in this run?',
             name: 'DO_TEST_MEMCHECK')
         booleanParam (