diff --git a/src/plugins/select/bluegene/bl/bridge_status.c b/src/plugins/select/bluegene/bl/bridge_status.c
index b5fc819cb50cc51382c37ed0ebe76590994c7341..e3e502b47bc8fcd70331c5a2f04fe6b11732fb8b 100644
--- a/src/plugins/select/bluegene/bl/bridge_status.c
+++ b/src/plugins/select/bluegene/bl/bridge_status.c
@@ -64,6 +64,8 @@ static pthread_t block_thread = 0;
 static pthread_t state_thread = 0;
 static pthread_mutex_t thread_flag_mutex = PTHREAD_MUTEX_INITIALIZER;
 
+static int _do_block_poll(void);
+
 #if defined HAVE_BG_FILES
 
 /* Find the specified BlueGene node ID and drain it from SLURM */