diff --git a/RTCP/Cobalt/OutputProc/src/OutputThread.cc b/RTCP/Cobalt/OutputProc/src/OutputThread.cc
index 4f8c168a92c65a8dc79a0d0d23006d5e38669f61..d172e190d16caba7dffacc5cef2c0ec9faeb5b15 100644
--- a/RTCP/Cobalt/OutputProc/src/OutputThread.cc
+++ b/RTCP/Cobalt/OutputProc/src/OutputThread.cc
@@ -170,7 +170,7 @@ namespace LOFAR
     {
       // report statistics
       const float lostPerc = 100.0 * itsBlocksDroppedByMe / itsNrExpectedBlocks;
-      const float didNotSendPerc = itsNrExpectedBlocks == 0 ? 0.0 : (100.0 - 100.0 * itsFractionalBlocksWritten) / itsNrExpectedBlocks;
+      const float didNotSendPerc = itsNrExpectedBlocks == 0 ? 0.0 : 100.0 - 100.0 * itsFractionalBlocksWritten / itsNrExpectedBlocks;
       const float didNotReceivePerc = didNotSendPerc + lostPerc;
 
       if (didNotReceivePerc > 0)