diff --git a/src/finn/custom_op/fpgadataflow/streamingfclayer_batch.py b/src/finn/custom_op/fpgadataflow/streamingfclayer_batch.py
index 3cff5a6af1cf47536d83dfaa94749f737dc539f0..a2a8f13ae11001d591d70553a30849ce103e862b 100644
--- a/src/finn/custom_op/fpgadataflow/streamingfclayer_batch.py
+++ b/src/finn/custom_op/fpgadataflow/streamingfclayer_batch.py
@@ -747,14 +747,13 @@ class StreamingFCLayer_Batch(HLSCustomOp):
                 export_wdt = DataType.BINARY
             else:
                 export_wdt = wdt
-            wdtype_hls_str = export_wdt.get_hls_datatype_str()
             self.code_gen_dict["$DOCOMPUTE$"] = [
-                """Matrix_Vector_Activate_Stream_Batch<MW1, MH1, SIMD1, PE1, {}, {}, {}, {} >
-                (in0, out, weights, {}, numReps, {});""".format(
+                """Matrix_Vector_Activate_Stream_Batch<MW1, MH1, SIMD1, PE1, {}, {},
+                {}, {}>(in0, out, weights, {}, numReps, {});""".format(
+                    export_wdt.bitwidth(),
                     tmpl_args["TSrcI"],
                     tmpl_args["TDstI"],
                     tmpl_args["TWeightI"],
-                    wdtype_hls_str,
                     threshs,
                     self.get_nodeattr("resType"),
                 )