diff --git a/include/configure.h.in b/include/configure.h.in
index 671d201b2..bcb282660 100644
--- a/include/configure.h.in
+++ b/include/configure.h.in
@@ -561,6 +561,9 @@
 /* Define to 1 to include code that uses lvmlockd sanlock option. */
 #undef LOCKDSANLOCK_SUPPORT
 
+/* Define to 1 to include code that uses lvmlockd IDM option. */
+#undef LOCKDIDM_SUPPORT
+
 /* Define to 1 if `lstat' dereferences a symlink specified with a trailing
    slash. */
 #undef LSTAT_FOLLOWS_SLASHED_SYMLINK