diff --git a/src/finn/custom_op/fpgadataflow/convolutioninputgenerator.py b/src/finn/custom_op/fpgadataflow/convolutioninputgenerator.py
index 7f834cf5ccd27f9f95350b584e9b41aef92d9105..49c7f81078c0b3a4832e052b66e21063619ab543 100644
--- a/src/finn/custom_op/fpgadataflow/convolutioninputgenerator.py
+++ b/src/finn/custom_op/fpgadataflow/convolutioninputgenerator.py
@@ -82,7 +82,7 @@ class ConvolutionInputGenerator(HLSCustomOp):
     def global_includes(self):
         self.code_gen_dict["$GLOBALS$"] = ['#include "slidingwindow.h"']
 
-    def defines(self):
+    def defines(self, var):
         numReps = 1
         self.code_gen_dict["$DEFINES$"] = [
             """#define ConvKernelDim1 {}\n #define IFMChannels1 {}
diff --git a/src/finn/custom_op/fpgadataflow/streamingmaxpool_batch.py b/src/finn/custom_op/fpgadataflow/streamingmaxpool_batch.py
index d331ffe04eb2ea4c445ee4fe1148eed262b23aa7..a316695b3d8691ab66cdef7a87093d7a777ef7ff 100644
--- a/src/finn/custom_op/fpgadataflow/streamingmaxpool_batch.py
+++ b/src/finn/custom_op/fpgadataflow/streamingmaxpool_batch.py
@@ -72,7 +72,7 @@ class StreamingMaxPool_Batch(HLSCustomOp):
     def global_includes(self):
         self.code_gen_dict["$GLOBALS$"] = ['#include "maxpool.h"']
 
-    def defines(self):
+    def defines(self, var):
         numReps = 2
         self.code_gen_dict["$DEFINES$"] = [
             """#define ImgDim {}\n #define PoolDim {}\n
@@ -197,3 +197,9 @@ class StreamingMaxPool_Batch(HLSCustomOp):
                 int(self.get_nodeattr("ImgDim") / self.get_nodeattr("PoolDim")),
             )
         ]
+
+    def blackboxfunction(self):
+        pass
+
+    def pragmas(self):
+        pass