diff --git a/Appl/CEP/CS1/CS1_InputSection/src/AH_InputSection.cc b/Appl/CEP/CS1/CS1_InputSection/src/AH_InputSection.cc
index 1e37d0ac0cffa4a89f87b4b5e256cd554b8ef604..a65362c13404f1cb2ecc2adc08a73195bc4c782b 100644
--- a/Appl/CEP/CS1/CS1_InputSection/src/AH_InputSection.cc
+++ b/Appl/CEP/CS1/CS1_InputSection/src/AH_InputSection.cc
@@ -156,7 +156,7 @@ namespace LOFAR {
       LOG_TRACE_FLOW_STR("Finished define()");
 
 #ifdef HAVE_MPI
-      ASSERTSTR (lowestFreeNode == TH_MPI::getNumberOfNodes(), "TFC_InputSection needs "<< lowestFreeNode << " nodes, "<<TH_MPI::getNumberOfNodes()<<" available");
+      ASSERTSTR (lowestFreeNode == TH_MPI::getNumberOfNodes(), "CS1_InputSection needs "<< lowestFreeNode << " nodes, "<<TH_MPI::getNumberOfNodes()<<" available");
 #endif
     }