diff --git a/apps/emqx_conf/src/emqx_conf.app.src b/apps/emqx_conf/src/emqx_conf.app.src
index e6c3d9cd9..c31a16b9b 100644
--- a/apps/emqx_conf/src/emqx_conf.app.src
+++ b/apps/emqx_conf/src/emqx_conf.app.src
@@ -1,6 +1,6 @@
 {application, emqx_conf, [
     {description, "EMQX configuration management"},
-    {vsn, "0.1.19"},
+    {vsn, "0.1.20"},
     {registered, []},
     {mod, {emqx_conf_app, []}},
     {applications, [kernel, stdlib, emqx_ctl]},
diff --git a/apps/emqx_conf/src/emqx_conf_schema.erl b/apps/emqx_conf/src/emqx_conf_schema.erl
index 94cbfb221..76213c690 100644
--- a/apps/emqx_conf/src/emqx_conf_schema.erl
+++ b/apps/emqx_conf/src/emqx_conf_schema.erl
@@ -893,8 +893,7 @@ fields("log_file_handler") ->
                 #{
                     desc => ?DESC("log_file_handler_file"),
                     default => <<"${EMQX_LOG_DIR}/emqx.log">>,
-                    converter => fun emqx_schema:naive_env_interpolation/1,
-                    validator => fun validate_file_location/1
+                    converter => fun emqx_schema:naive_env_interpolation/1
                 }
             )},
         {"rotation",
@@ -1333,11 +1332,6 @@ emqx_schema_high_prio_roots() ->
             )},
     lists:keyreplace("authorization", 1, Roots, Authz).
 
-validate_file_location(File) ->
-    ValidFile = "^[/\\_a-zA-Z0-9\\.\\-]*$",
-    Error = "Invalid file name: " ++ ValidFile,
-    validator_string_re(File, ValidFile, Error).
-
 validate_time_offset(Offset) ->
     ValidTimeOffset = "^([\\-\\+][0-1][0-9]:[0-6][0-9]|system|utc)$",
     Error =