diff --git a/python/obitools3/commands/clean_dms.pyx b/python/obitools3/commands/clean_dms.pyx
new file mode 100755
index 0000000..4d4eb4a
--- /dev/null
+++ b/python/obitools3/commands/clean_dms.pyx
@@ -0,0 +1,27 @@
+#cython: language_level=3
+
+from obitools3.apps.optiongroups import addMinimalInputOption
+from obitools3.uri.decode import open_uri
+from obitools3.dms import DMS
+from obitools3.dms.capi.obidms cimport obi_clean_dms
+from obitools3.apps.config import logger
+from obitools3.utils cimport tobytes
+
+ 
+__title__="Clean a DMS from unfinished views and columns"
+ 
+
+def addOptions(parser):
+    addMinimalInputOption(parser)
+  
+
+def run(config):
+    
+    DMS.obi_atexit()
+    
+    logger("info", "obi clean_dms")
+    
+    if obi_clean_dms(tobytes(config['obi']['inputURI'])) < 0 :
+        raise Exception("Error cleaning DMS", config['obi']['inputURI'])
+
+    logger("info", "Done.")