diff --git a/utils/valgrind/files/default.supp b/utils/valgrind/files/default.supp
index 25fd01f00..beff55984 100644
--- a/utils/valgrind/files/default.supp
+++ b/utils/valgrind/files/default.supp
@@ -34,3 +34,9 @@
 	fun:strnlen
 	fun:*
 }
+{
+	index(Cond)
+	Memcheck:Cond
+	fun:index
+	fun:*
+}