diff --git a/RTCP/Cobalt/GPUProc/src/cuda/Kernels/ZeroingKernel.cc b/RTCP/Cobalt/GPUProc/src/cuda/Kernels/ZeroingKernel.cc
index cb828e4eb085a3aa533e2715ed22362fff90adf2..9b3175eeceebfcb927043b61adfe50fec24360b1 100644
--- a/RTCP/Cobalt/GPUProc/src/cuda/Kernels/ZeroingKernel.cc
+++ b/RTCP/Cobalt/GPUProc/src/cuda/Kernels/ZeroingKernel.cc
@@ -108,7 +108,7 @@ namespace LOFAR
       // marshall flags to GPU host buffer
       computeMaskTimer.start();
       for(unsigned station = 0; station < nrSTABs; ++station) {
-        LOG_DEBUG_STR("Flags for block " << blockId << ", station " << station << ": " << channelFlags[station]);
+        //LOG_DEBUG_STR("Flags for block " << blockId << ", station " << station << ": " << channelFlags[station]);
         channelFlags[station].toByteset(hostMask.get<char>() + station * nrSamplesPerChannel, nrSamplesPerChannel);
       }
       computeMaskTimer.stop();