diff --git a/src/lj.supp b/src/lj.supp
index 411f2617..217f7c89 100644
--- a/src/lj.supp
+++ b/src/lj.supp
@@ -24,3 +24,18 @@
    Memcheck:Cond
    fun:lj_str_new
 }
+{
+   Optimized string compare
+   Memcheck:Addr4
+   fun:str_fastcmp
+}
+{
+   Optimized string compare
+   Memcheck:Addr1
+   fun:str_fastcmp
+}
+{
+   Optimized string compare
+   Memcheck:Cond
+   fun:str_fastcmp
+}