diff --git a/python/s2snow/compute_NOBS.py b/python/s2snow/compute_NOBS.py
index 43e947115cd2f42ba960701a9cc0a0b97b9b1fee..41bc04792e168ef5d809fc02375e40c7951ffeb3 100644
--- a/python/s2snow/compute_NOBS.py
+++ b/python/s2snow/compute_NOBS.py
@@ -36,12 +36,12 @@ def compute_NOBS(input_file, synthesis_name=None, output_dir=None):
     :return:
     """
     logging.debug("compute_NOBS")
-    logging.debug("input_file", input_file)
-    logging.debug("synthesis_name", synthesis_name)
-    logging.debug("output_dir", output_dir)
+    logging.debug("input_file : %s", input_file)
+    logging.debug("synthesis_name : %s", synthesis_name)
+    logging.debug("output_dir : %s", output_dir)
 
     if not os.path.isfile(input_file):
-        logging.error("Input file does not exist : {}", input_file)
+        logging.error("Input file does not exist : %s", input_file)
         return
 
     if output_dir is None:
@@ -69,8 +69,6 @@ def compute_NOBS(input_file, synthesis_name=None, output_dir=None):
         with rasterio.open(output_file, 'w', **profile) as dst:
             dst.write(S.astype(rasterio.uint16), 1)
 
-    logging.info("End of compute_NOBS.py")
-
 
 def show_help():
     """
diff --git a/python/s2snow/compute_SOD_SMOD.py b/python/s2snow/compute_SOD_SMOD.py
index 1fb2d83b7fa57011fae98f2e58e7fbe641fd3126..5641506d36f9ccccebb0400637a7c6083d3258b2 100644
--- a/python/s2snow/compute_SOD_SMOD.py
+++ b/python/s2snow/compute_SOD_SMOD.py
@@ -38,9 +38,9 @@ def compute_SOD_SMOD(input_file, synthesis_name=None, output_dir=None):
     """
     logging.info("Start compute_SOD_SMOD.py using: {}".format(input_file))
     logging.debug("compute_SOD_SMOD")
-    logging.debug("tmp_dir", output_dir)
-    logging.debug("input_file", input_file)
-    logging.debug("synthesis_name", synthesis_name.format("XXX"))
+    logging.debug("tmp_dir : %s", output_dir)
+    logging.debug("input_file : %s", input_file)
+    logging.debug("synthesis_name : %s", synthesis_name.format("XXX"))
 
     if not os.path.isfile(input_file):
         msg = "Input file does not exist : {}".format(input_file)