diff --git a/cmake/find/hdfs3.cmake b/cmake/find/hdfs3.cmake
index e8e9fb359c9..3f7afd3f6b3 100644
--- a/cmake/find/hdfs3.cmake
+++ b/cmake/find/hdfs3.cmake
@@ -11,7 +11,8 @@ if(NOT ENABLE_HDFS)
     return()
 endif()
 
-option(USE_INTERNAL_HDFS3_LIBRARY "Set to FALSE to use system HDFS3 instead of bundled" ${NOT_UNBUNDLED})
+option(USE_INTERNAL_HDFS3_LIBRARY "Set to FALSE to use system HDFS3 instead of bundled (experimental - set to OFF on your own risk)"
+       ON) # We don't know any linux distribution with package for it
 
 if(NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/libhdfs3/include/hdfs/hdfs.h")
     if(USE_INTERNAL_HDFS3_LIBRARY)
diff --git a/cmake/find/orc.cmake b/cmake/find/orc.cmake
index e91f0e95819..3ab67a98644 100644
--- a/cmake/find/orc.cmake
+++ b/cmake/find/orc.cmake
@@ -7,7 +7,8 @@ if(NOT ENABLE_ORC)
     return()
 endif()
 
-option(USE_INTERNAL_ORC_LIBRARY "Set to FALSE to use system ORC instead of bundled" ${NOT_UNBUNDLED})
+option(USE_INTERNAL_ORC_LIBRARY "Set to FALSE to use system ORC instead of bundled (experimental set to OFF on your own risk)"
+        ON)
 
 include(cmake/find/snappy.cmake)