diff --git a/src/connection_pool.c b/src/connection_pool.c
index 779939c..09bb696 100644
--- a/src/connection_pool.c
+++ b/src/connection_pool.c
@@ -779,6 +779,7 @@ int conn_pool_global_init_for_rdma()
     LOAD_API(G_COMMON_CONNECTION_CALLBACKS[fc_comm_type_rdma],
             is_connected);
 
+    LOAD_API(G_RDMA_CONNECTION_CALLBACKS, set_busy_polling);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, alloc_pd);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, get_connection_size);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, init_connection);
diff --git a/src/connection_pool.h b/src/connection_pool.h
index 08af0d3..7f8e29d 100644
--- a/src/connection_pool.h
+++ b/src/connection_pool.h
@@ -59,7 +59,7 @@ typedef struct {
 
 struct fc_server_config;
 struct ibv_pd;
-typedef int (*fc_global_init_callback)();
+typedef void (*fc_set_busy_polling_callback)(const bool busy_polling);
 typedef struct ibv_pd *(*fc_alloc_pd_callback)(const char **ip_addrs,
         const int count, const int port);
 typedef int (*fc_get_connection_size_callback)();
@@ -98,7 +98,7 @@ typedef struct {
 } CommonConnectionCallbacks;
 
 typedef struct {
-    fc_global_init_callback global_init;
+    fc_set_busy_polling_callback set_busy_polling;
     fc_alloc_pd_callback alloc_pd;
     fc_get_connection_size_callback get_connection_size;
     fc_init_connection_callback init_connection;