diff --git a/extensions/niak_test/niak_brick_cmp_files.m b/extensions/niak_test/niak_brick_cmp_files.m
index 8db9df2a..5c66d0f5 100644
--- a/extensions/niak_test/niak_brick_cmp_files.m
+++ b/extensions/niak_test/niak_brick_cmp_files.m
@@ -128,8 +128,8 @@
 end
 
 %% Options
-list_fields   = { 'flag_ignore_format' , 'base_source' , 'base_target' , 'black_list_source' , 'black_list_target' , 'flag_source_only' , 'eps'   , 'flag_verbose' , 'flag_test' };
-list_defaults = { false                , NaN           , NaN           , {}                  , {}                  , false              , 10^(-4) , true           , false       };
+list_fields   = { 'exclude_files' , 'flag_ignore_format' , 'base_source' , 'base_target' , 'exclude_files' , 'black_list_source' , 'black_list_target' , 'flag_source_only' , 'eps'   , 'flag_verbose' , 'flag_test' };
+list_defaults = { {}              , false                , NaN           , NaN           , {}              , {}                  , {}                  , false              , 10^(-4) , true           , false       };
 opt = psom_struct_defaults(opt,list_fields,list_defaults);
 
 if ~isempty(opt.base_source)
@@ -146,11 +146,11 @@
 in = psom_struct_defaults(in,{'source','target'},{{},{}});
 
 if isempty(in.source)
-    in.source = niak_grab_folder(opt.base_source,opt.black_list_source);
+    in.source = niak_grab_folder(opt.base_source,opt.black_list_source,exclude_files);
 end
 
 if isempty(in.target)
-    in.target = niak_grab_folder(opt.base_target,opt.black_list_target);
+    in.target = niak_grab_folder(opt.base_target,opt.black_list_target,exclude_files);
 end
 
 if ~iscellstr(in.source)||~iscellstr(in.target)
diff --git a/extensions/niak_test/niak_grab_folder.m b/extensions/niak_test/niak_grab_folder.m
index 55c9feab..8047fa2f 100644
--- a/extensions/niak_test/niak_grab_folder.m
+++ b/extensions/niak_test/niak_grab_folder.m
@@ -1,8 +1,8 @@
- function files = niak_grab_folder(path_data,black_list)
+ function files = niak_grab_folder(path_data,black_list,exclude_files)
 % Grab all the files inside a folder (recursively)
 %
 % SYNTAX:
-% FILES = NIAK_GRAB_FOLDER(PATH_DATA,BLACK_LIST)
+% FILES = NIAK_GRAB_FOLDER(PATH_DATA,BLACK_LIST,EXCLUDE_FILES)
 %
 % _________________________________________________________________________
 % INPUTS:
@@ -75,6 +75,16 @@
     if ~isdir(black_list{num_e})
         black_list_file{end+1} = regexprep(black_list{num_e},['(.*)' filesep],'$1') ;
     end
+else
+    black_list = {};
+end
+
+%% List of excluded files
+if (nargin < 3)
+    exclude_files = {};
+end
+if ischar(exclude_files)
+    exclude_files = {exclude_files};
 end
    
 %% List of folders
@@ -86,7 +96,7 @@
 files_loc = dir(path_data);
 is_dir = [files_loc.isdir];
 files_loc = {files_loc.name};
-mask = ~ismember(files_loc,{'.','..'});
+mask = ~ismember(files_loc,{'.','..'})&~ismember(files_loc,exclude_files);
 is_dir = is_dir(mask);
 files_loc = files_loc(mask);
 files_loc = strcat(repmat({path_data},size(files_loc)),files_loc);