diff --git a/ompi/mca/btl/sm/btl_sm.h b/ompi/mca/btl/sm/btl_sm.h
index fabdbd4348..99e201d30c 100644
--- a/ompi/mca/btl/sm/btl_sm.h
+++ b/ompi/mca/btl/sm/btl_sm.h
@@ -342,7 +342,6 @@ static inline int sm_fifo_write(void *value, sm_fifo_t *fifo)
     q[fifo->head] = value;
     opal_atomic_wmb();
     fifo->head = (fifo->head + 1) & fifo->mask;
-    opal_atomic_wmb(); 
     return OMPI_SUCCESS;
 }