diff --git a/runtime/starpu/include/chameleon_starpu.h.in b/runtime/starpu/include/chameleon_starpu.h.in
index 9b7d355b9e66dbc1dde3458ea351412177e00f67..2b3671aa75b595fa3101c0dbb0a63d55ea9578cb 100644
--- a/runtime/starpu/include/chameleon_starpu.h.in
+++ b/runtime/starpu/include/chameleon_starpu.h.in
@@ -105,7 +105,6 @@ typedef struct starpu_option_request_s {
 #endif
 
 #if defined(CHAMELEON_USE_MPI)
-#undef STARPU_REDUX
 
 #if defined(CHAMELEON_RUNTIME_SYNC)
 #define rt_starpu_insert_task( _codelet_, ... )                         \