diff --git a/Makefile b/Makefile
index 31c5db7..4c18626 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ TEMP_PATH:=$(shell echo ~/work/lipase/tmp)
 TESTS_OUTPUT_DATA_PATH:=$(TEMP_PATH)
 LIB_SRC_FILES=$(shell find ./src/lipase -name "*.py")
 PLUGINS_SRC_FILES=$(shell find ./src/ij-plugins -name "*.py")
-LIPASE_VERSION=1.06
+LIPASE_VERSION=1.07
 
 BUILD_ROOT_PATH:=$(TEMP_PATH)/build
 PACKAGE_FILE_PATH=$(BUILD_ROOT_PATH)/lipase-$(LIPASE_VERSION).zip
diff --git a/src/lipase/catalog.py b/src/lipase/catalog.py
index a0e29c3..705da33 100644
--- a/src/lipase/catalog.py
+++ b/src/lipase/catalog.py
@@ -226,11 +226,17 @@ class ImageCatalog(object):
         """
 
         sequence_paths = find_dirs_containing_file('metadata.txt', self.raw_images_root)
+        logger.debug('sequence_paths : %s' % sequence_paths)
         sequence_ids = [ os.path.relpath(sequence_path, raw_images_root) for sequence_path in sequence_paths ]
+        logger.debug('sequence_ids : %s' % sequence_ids)
         # nb : we use the path as sequence id because the "Comment" field in the summary section of the metadata file is not guaranteed to be unique (eg they are the same in res_soleil2018/white/white_24112018_1/Pos0 and in res_soleil2018/white/white_24112018_2/Pos0)
 
         for sequence_id in sequence_ids:
-            micro_manager_metadata_file_path = os.path.join(raw_images_root, sequence_id, 'metadata.txt')
+            if sequence_id == '.':
+                # special degenerate case: when raw_images_root points to a Pos<n> directory, sequence_id is '.', which means there's no intemediate directories between raw_images_root and metadata.txt
+                micro_manager_metadata_file_path = os.path.join(raw_images_root, 'metadata.txt')
+            else:
+                micro_manager_metadata_file_path = os.path.join(raw_images_root, sequence_id, 'metadata.txt')
             # micro_manager_metadata_file_path = '/tmp/toto.json'
             self.sequences[sequence_id] = Sequence(self, sequence_id, micro_manager_metadata_file_path)