diff --git a/doc/salome/gui/GEOM/input/remove_extra_edges_operation.doc b/doc/salome/gui/GEOM/input/remove_extra_edges_operation.doc
index 4988009e6..ef1b932bf 100644
--- a/doc/salome/gui/GEOM/input/remove_extra_edges_operation.doc
+++ b/doc/salome/gui/GEOM/input/remove_extra_edges_operation.doc
@@ -10,9 +10,9 @@ hexahedral solids and compounds of hexahedral solids.
 However, there is an option to unite all faces sharing one
 surface, which produces not only hexahedral solids.
 
-\n <b>TUI Command:</b> <em>geompy.RemoveExtraEdges(theShape,theOptimumNbFaces)</em>,
+\n <b>TUI Command:</b> <em>geompy.RemoveExtraEdges(theShape,doUnionFaces)</em>,
 where <em>theShape</em> is a compound or a single solid
-and <em>theOptimumNbFaces</em> is an integer parameter, that regulates,
+and <em>doUnionFaces</em> is a boolean parameter, that regulates,
 whether the faces, sharing a common surface, should be united.
 \n <b>Arguments:</b> Name + one shape + a flag.
 \n <b>Advanced option:</b>
diff --git a/src/GEOMImpl/GEOMImpl_IBlocksOperations.cxx b/src/GEOMImpl/GEOMImpl_IBlocksOperations.cxx
index 0a2c4d6e0..586967966 100644
--- a/src/GEOMImpl/GEOMImpl_IBlocksOperations.cxx
+++ b/src/GEOMImpl/GEOMImpl_IBlocksOperations.cxx
@@ -2350,9 +2350,9 @@ Handle(GEOM_Object) GEOMImpl_IBlocksOperations::RemoveExtraEdges
   }
 
   //Make a Python command
-  GEOM::TPythonDump(aFunction) << aCopy
-                               << " = geompy.RemoveExtraEdges(" << theObject
-                               << ", " << theOptimumNbFaces << ")";
+  std::string doUnionFaces = (theOptimumNbFaces < 0) ? "False" : "True";
+  GEOM::TPythonDump(aFunction) << aCopy << " = geompy.RemoveExtraEdges("
+                               << theObject << ", " << doUnionFaces.data() << ")";
 
   SetErrorCode(OK);
   return aCopy;
diff --git a/src/GEOM_SWIG/geompyDC.py b/src/GEOM_SWIG/geompyDC.py
index b2eb778f3..42afc3c82 100644
--- a/src/GEOM_SWIG/geompyDC.py
+++ b/src/GEOM_SWIG/geompyDC.py
@@ -3627,16 +3627,16 @@ class geompyDC(GEOM._objref_GEOM_Gen):
         #  Unite faces and edges, sharing one surface. It means that
         #  this faces must have references to one C++ surface object (handle).
         #  @param theShape The compound or single solid to remove irregular edges from.
-        #  @param theOptimumNbFaces If more than zero, unite faces only for those solids,
-        #         that have more than theOptimumNbFaces faces. If zero, unite faces always,
-        #         regardsless their quantity in the solid. If negative (the default value),
-        #         do not unite faces at all. For blocks repairing recommended value is 6.
+        #  @param doUnionFaces If True, then unite faces. If False (the default value),
+        #         do not unite faces.
         #  @return Improved shape.
         #
         #  @ref swig_RemoveExtraEdges "Example"
-        def RemoveExtraEdges(self,theShape,theOptimumNbFaces=-1):
+        def RemoveExtraEdges(self, theShape, doUnionFaces=False):
             # Example: see GEOM_TestOthers.py
-            anObj = self.BlocksOp.RemoveExtraEdges(theShape,theOptimumNbFaces)
+            nbFacesOptimum = -1 # -1 means do not unite faces
+            if doUnionFaces is True: nbFacesOptimum = 0 # 0 means unite faces
+            anObj = self.BlocksOp.RemoveExtraEdges(theShape, nbFacesOptimum)
             RaiseIfFailed("RemoveExtraEdges", self.BlocksOp)
             return anObj