diff --git a/python/dune/common/__init__.py b/python/dune/common/__init__.py
index 93c43440fe44fc754daedc1dce7db0138ac3fcfe..aa518e477eabb77e5d59148a1f59f75db4d309f1 100644
--- a/python/dune/common/__init__.py
+++ b/python/dune/common/__init__.py
@@ -11,7 +11,7 @@ except KeyError:
 except AttributeError:
     logger.warn('Invalid log level in environment variable DUNE_LOG_LEVEL')
 
-logformat = os.environ.get('DUNE_LOG_FORMAT', '%(levelname)s: %(message)s')
+logformat = os.environ.get('DUNE_LOG_FORMAT', 'DUNE-%(levelname)s: %(message)s')
 
 logging.basicConfig(format=logformat, level=loglevel)
 
diff --git a/python/dune/generator/__init__.py b/python/dune/generator/__init__.py
index e638cd92619edce654cef6454c64c3ce3a4bb1a4..437a8b6b038016e3a57168daaf2602b661bc6782 100644
--- a/python/dune/generator/__init__.py
+++ b/python/dune/generator/__init__.py
@@ -12,13 +12,13 @@ env_save  = os.environ.get('DUNE_SAVE_BUILD' , 'FALSE').upper()
 builder = Builder( env_force in ('1', 'TRUE'), env_save )
 
 def setNoDependencyCheck():
-    logger.info("Switching off dependency check - modules will always be compiled")
+    logger.debug("Switching off dependency check - modules will always be compiled")
     builderModule.noDepCheck = True
 def setDependencyCheck():
-    logger.info("Switching on dependency check")
+    logger.debug("Switching on dependency check")
     builderModule.noDepCheck = False
 def setFlags(flags="-g",noChecks=None):
-    logger.info("Using compile flags '"+flags+"'")
+    logger.debug("Using compile flags '"+flags+"'")
     builderModule.cxxFlags = flags
     if noChecks is True:
         setNoDependencyCheck()
@@ -28,7 +28,7 @@ def addToFlags(pre="",post="",noChecks=None):
     setFlags(pre+" "+getCXXFlags()+" "+post,noChecks)
 
 def unsetFlags(noChecks=None):
-    logger.info("Using compile flags from configuration of dune-py")
+    logger.debug("Using compile flags from configuration of dune-py")
     builderModule.cxxFlags = None
     if noChecks is True:
         setNoDependencyCheck()