diff --git a/Grid/util/Init.cc b/Grid/util/Init.cc
index a508f5a6..6a84a2f2 100644
--- a/Grid/util/Init.cc
+++ b/Grid/util/Init.cc
@@ -320,7 +320,7 @@ void Grid_init(int *argc,char ***argv)
 
 #if defined(A64FX)
   if( GridCmdOptionExists(*argv,*argv+*argc,"--comms-overlap") ){
-    std::cout << "Option --comms-overlap currently not supported on QPACE4. Exiting."
+    std::cout << "Option --comms-overlap currently not supported on QPACE4. Exiting." << std::endl;
     exit(EXIT_FAILURE);
   }
 #endif