diff --git a/src/finn/analysis/fpgadataflow/hls_synth_res_estimation.py b/src/finn/analysis/fpgadataflow/hls_synth_res_estimation.py
index 0334c316b80a5c0628d00b75eb40776436cb8434..d2fc9bd37ae74917b93c50afc7340f9fb6c7b8c0 100644
--- a/src/finn/analysis/fpgadataflow/hls_synth_res_estimation.py
+++ b/src/finn/analysis/fpgadataflow/hls_synth_res_estimation.py
@@ -66,7 +66,7 @@ def hls_synth_res_estimation(model):
                         for item in root.findall("AreaEstimates/Resources"):
                             for child in item:
                                 res_dict[node.name].append(
-                                    ["{} : {}".format(child.tag, child.text)]
+                                    "{} : {}".format(child.tag, child.text)
                                 )
                     else:
                         raise Exception(
diff --git a/src/finn/custom_op/fpgadataflow/__init__.py b/src/finn/custom_op/fpgadataflow/__init__.py
index 3a1d65a0cc46b5cccf1e30d93517d0a40c8b7aac..fb302027b8a6b67ebb0bdb467926eedfda9c5b0d 100644
--- a/src/finn/custom_op/fpgadataflow/__init__.py
+++ b/src/finn/custom_op/fpgadataflow/__init__.py
@@ -81,8 +81,8 @@ class HLSCustomOp(CustomOp):
         """Returns summarized resource estimation of BRAMs and LUTs
         of the node."""
         resources = []
-        resources.append("BRAMs: " + str(self.bram_estimation()))
-        resources.append("LUTs: " + str(self.lut_estimation()))
+        resources.append("BRAM_18K: " + str(self.bram_estimation()))
+        resources.append("LUT: " + str(self.lut_estimation()))
         return resources
 
     def bram_estimation(self):