--- a/src/ClpCholeskyMumps.cpp
+++ b/src/ClpCholeskyMumps.cpp
@@ -11,7 +11,6 @@
 #define JOB_INIT -1
 #define JOB_END -2
 #define USE_COMM_WORLD -987654
-extern "C" {
 #include "dmumps_c.h"
 // In newer ThirdParty/Mumps, mpi.h is renamed to mumps_mpi.h.
 // We get informed about this by having COIN_USE_MUMPS_MPI_H defined.
@@ -20,7 +19,6 @@
 #else
 #include "mpi.h"
 #endif
-}
 
 #include "ClpCholeskyMumps.hpp"
 #include "ClpMessage.hpp"