diff --git a/Configure b/Configure
index c6c68bf11d..3a5bd8e9de 100755
--- a/Configure
+++ b/Configure
@@ -834,6 +834,7 @@ my @disablables = (
     "cmac",
     "cms",
     "comp",
+    "crypto-mdebug",
     "ct",
     "deprecated",
     "des",