diff --git a/src/finn/transformation/fpgadataflow/convert_to_hls_layers.py b/src/finn/transformation/fpgadataflow/convert_to_hls_layers.py
index c480a60013237de3b0dbbd461e8c30554bca2058..315a7368ee4896832b649ad0444704ac53dd974a 100644
--- a/src/finn/transformation/fpgadataflow/convert_to_hls_layers.py
+++ b/src/finn/transformation/fpgadataflow/convert_to_hls_layers.py
@@ -505,7 +505,7 @@ class InferChannelwiseLinearLayer(Transformation):
 
         for k in DataType.__members__:
             dt = DataType[k]
-            if dt in [DataType.BIPOLAR, DataType.BIPOLAR]:
+            if dt in [DataType.BIPOLAR, DataType.TERNARY]:
                 # not currently supported
                 continue