diff --git a/python3/vimspector/variables.py b/python3/vimspector/variables.py
index 9b9b372..9e74345 100644
--- a/python3/vimspector/variables.py
+++ b/python3/vimspector/variables.py
@@ -246,10 +246,6 @@ class VariablesView( object ):
   def SetServerCapabilities( self, capabilities ):
     self._server_capabilities = capabilities
 
-    if self._server_capabilities.get( 'supportsSetVariable' ):
-      # TODO add a winbar item ? add a mapping ?
-      pass
-
   def ConnectionClosed( self ):
     self.Clear()
     self._connection = None
@@ -519,6 +515,9 @@ class VariablesView( object ):
     variable: Variable
     view: View
 
+    if not self._server_capabilities.get( 'supportsSetVariable' ):
+      return
+
     variable, view = self._GetVariable( buf, line_num )
     if variable is None:
       return