diff --git a/c/src/lib/libbsp/mips/p4000/startup/bspclean.c b/c/src/lib/libbsp/mips/p4000/startup/bspclean.c
index 2aee25a72b..5382c8491c 100644
--- a/c/src/lib/libbsp/mips/p4000/startup/bspclean.c
+++ b/c/src/lib/libbsp/mips/p4000/startup/bspclean.c
@@ -30,6 +30,8 @@
 #include <rtems.h>
 #include <bsp.h>
 
+void idtsim__exit();
+
 void bsp_cleanup( void )
 {
   idtsim__exit();
diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c b/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c
index 2aee25a72b..5382c8491c 100644
--- a/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c
+++ b/c/src/lib/libbsp/mips64orion/p4000/startup/bspclean.c
@@ -30,6 +30,8 @@
 #include <rtems.h>
 #include <bsp.h>
 
+void idtsim__exit();
+
 void bsp_cleanup( void )
 {
   idtsim__exit();