diff --git a/CMakeLists.txt b/CMakeLists.txt
index 68d4f0fc0..0abc55fef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -451,6 +451,8 @@ if(NOT USE_STATIC_LIBC)
 endif()
 
 set(LAF_WITH_TESTS ${ENABLE_TESTS} CACHE BOOL "Enable LAF tests")
+set(UNDO_TESTS     ${ENABLE_TESTS} CACHE BOOL "Enable undo tests")
+
 add_subdirectory(laf)
 
 add_subdirectory(src)
diff --git a/laf b/laf
index 42ad03a9a..e6d79aa2e 160000
--- a/laf
+++ b/laf
@@ -1 +1 @@
-Subproject commit 42ad03a9a30ebe619674aaf07ef27cf442133903
+Subproject commit e6d79aa2ef6fe032f05e75386398667b084e0ec5