diff --git a/python/GafferSceneUI/SetEditor.py b/python/GafferSceneUI/SetEditor.py
index c8c20a8cbcc..472603f6f0b 100644
--- a/python/GafferSceneUI/SetEditor.py
+++ b/python/GafferSceneUI/SetEditor.py
@@ -58,11 +58,11 @@ def __init__( self, scriptNode, **kw ) :
 
 		searchFilter = _GafferSceneUI._SetEditor.SearchFilter()
 		emptySetFilter = _GafferSceneUI._SetEditor.EmptySetFilter()
-		emptySetFilter.userData()["UI"] = { "label" : "Hide Empty" }
+		emptySetFilter.userData()["UI"] = { "label" : "Hide Empty Members", "toolTip" : "Hide sets with no members" }
 		emptySetFilter.setEnabled( False )
 
 		emptySelectionFilter = _GafferSceneUI._SetEditor.EmptySetFilter( propertyName = "setPath:selectedMemberCount" )
-		emptySelectionFilter.userData()["UI"] = { "label" : "Hide Empty Selection" }
+		emptySelectionFilter.userData()["UI"] = { "label" : "Hide Empty Selection", "toolTip" : "Hide sets with no selected members or descendants" }
 		emptySelectionFilter.setEnabled( False )
 
 		self.__filter = Gaffer.CompoundPathFilter( [ searchFilter, emptySetFilter, emptySelectionFilter ] )
diff --git a/python/GafferUI/PathFilterWidget.py b/python/GafferUI/PathFilterWidget.py
index 482a59ba7be..7e48689f602 100644
--- a/python/GafferUI/PathFilterWidget.py
+++ b/python/GafferUI/PathFilterWidget.py
@@ -127,6 +127,11 @@ def _updateFromPathFilter( self ) :
 			invertEnabled = self.pathFilter().userData()["UI"]["invertEnabled"].value
 		self.__checkBox.setState( self.pathFilter().getEnabled() is not invertEnabled )
 
+		toolTip = ""
+		with IECore.IgnoredExceptions( KeyError ) :
+			toolTip = self.pathFilter().userData()["UI"]["toolTip"].value
+		self.__checkBox.setToolTip( toolTip )
+
 	def __stateChanged( self, checkBox ) :
 
 		invertEnabled = False