diff --git a/src/brevitas/graph/standardize.py b/src/brevitas/graph/standardize.py
index 7bbbb201d..93e99eac9 100644
--- a/src/brevitas/graph/standardize.py
+++ b/src/brevitas/graph/standardize.py
@@ -59,7 +59,7 @@ def match_node(self, node: Node) -> bool:
         is_adaptive_2d_mean = ((2, 3) in node.args or [2, 3] in node.args or
                                'dim' in node.kwargs and
                                (node.kwargs['dim'] == (2, 3) or node.kwargs['dim'] == [2, 3]))
-        is_adaptive_2d_mean = is_adaptive_2d_mean and not node.kwargs['keepdim']
+        is_adaptive_2d_mean = is_adaptive_2d_mean and not node.kwargs.get('keepdim', False)
         return spr and is_adaptive_2d_mean
 
     def move_node_args_to_kwargs(self, node: Node):