diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3fef20ba0..57948431c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1062,7 +1062,7 @@ ENDIF()
 IF(ENABLE_DAP)
   SET(USE_DAP ON CACHE BOOL "")
   SET(ENABLE_DAP2 ON CACHE BOOL "")
-  SET(ENABLE_DAP4 OFF CACHE BOOL "")
+  SET(ENABLE_DAP4 ON CACHE BOOL "")
 
   IF(NOT ENABLE_HDF5)
     SET(ENABLE_DAP4 OFF CACHE BOOL "")