diff --git a/lib/bsp/standalone/src/profile/profile_mcount_mb.S b/lib/bsp/standalone/src/profile/profile_mcount_mb.S
index e2dc9ca3..f4ec7557 100755
--- a/lib/bsp/standalone/src/profile/profile_mcount_mb.S
+++ b/lib/bsp/standalone/src/profile/profile_mcount_mb.S
@@ -49,7 +49,7 @@ _mcount:
 	swi r9, r1, 20
 	swi r10, r1, 16
 	swi r15, r1, 12
-	add r5, r0, r15
+	add r6, r0, r15
 	brlid r15, mcount
 	lwi r5, r1, 48