diff --git a/RTCP/Cobalt/GPUProc/src/Kernels/DelayAndBandPassKernel.cc b/RTCP/Cobalt/GPUProc/src/Kernels/DelayAndBandPassKernel.cc
index 3ad35b6fdb9789810664c95a0c8763ebc587fd4e..683ec63c9a724c1bad480808985c824144de217e 100644
--- a/RTCP/Cobalt/GPUProc/src/Kernels/DelayAndBandPassKernel.cc
+++ b/RTCP/Cobalt/GPUProc/src/Kernels/DelayAndBandPassKernel.cc
@@ -110,7 +110,7 @@ namespace LOFAR
           delayIndices.size() * sizeof delayIndices[0];
       case DelayAndBandPassKernel::DELAYS:
         return 
-          (size_t) nrSAPs * nrDelays * 
+          (size_t) nrSAPs * nrDelays *  // FIXME nrSAPs==1 assumed in the kernel
             NR_POLARIZATIONS * sizeof(double);
       case DelayAndBandPassKernel::PHASE_ZEROS:
         return
@@ -191,7 +191,7 @@ namespace LOFAR
                                          double subbandFrequency, unsigned SAP)
     {
       setArg(3, subbandFrequency);
-      setArg(4, SAP);
+      setArg(4, SAP); // FIXME
       Kernel::enqueue(blockId);
     }