diff --git a/bob/pad/face/config/preprocessor/video_sparse_coding.py b/bob/pad/face/config/preprocessor/video_sparse_coding.py
index 732ea2305283c9927219f1dfd30bfb7edc83e2c7..525c6de69997bad4e0ee8b2d1d83d6180b5017cd 100644
--- a/bob/pad/face/config/preprocessor/video_sparse_coding.py
+++ b/bob/pad/face/config/preprocessor/video_sparse_coding.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python
 
+import os
+
 from bob.pad.face.preprocessor import VideoSparseCoding
 
 #=======================================================================================
@@ -9,9 +11,13 @@ BLOCK_SIZE = 5
 BLOCK_LENGTH = 10
 MIN_FACE_SIZE = 50
 NORM_FACE_SIZE = 64
-DICTIONARY_FILE_NAMES = ["./dictionaries/dictionary_front_10_5_128.hdf5",
-                         "./dictionaries/dictionary_hor_10_5_128.hdf5",
-                         "./dictionaries/dictionary_vert_10_5_128.hdf5"]
+
+DICTIONARY_LENGTH = 128
+DIR = os.path.dirname(os.path.abspath(__file__))
+
+DICTIONARY_FILE_NAMES = [os.path.join(DIR, "dictionaries", "dictionary_front_10_5_{}.hdf5".format(DICTIONARY_LENGTH)),
+                         os.path.join(DIR, "dictionaries", "dictionary_hor_10_5_{}.hdf5".format(DICTIONARY_LENGTH)),
+                         os.path.join(DIR, "dictionaries", "dictionary_vert_10_5_{}.hdf5".format(DICTIONARY_LENGTH))]
 
 FRAME_STEP = 50 # (!) a small number of feature vectors will be computed
 EXTRACT_HISTOGRAMS_FLAG = True
@@ -24,4 +30,7 @@ preprocessor_10_5_128 = VideoSparseCoding(gblock_size = BLOCK_SIZE,
                                           dictionary_file_names = DICTIONARY_FILE_NAMES,
                                           frame_step = FRAME_STEP,
                                           extract_histograms_flag = EXTRACT_HISTOGRAMS_FLAG,
-                                          comp_reconstruct_err_flag = COMP_RECONSTRUCT_ERR_FLAG)
\ No newline at end of file
+                                          comp_reconstruct_err_flag = COMP_RECONSTRUCT_ERR_FLAG)
+
+
+