diff --git a/tests/valgrind-csync.supp b/tests/valgrind-csync.supp
index 1c089489a1..c4d10e40ca 100644
--- a/tests/valgrind-csync.supp
+++ b/tests/valgrind-csync.supp
@@ -34,6 +34,24 @@
    fun:dlopen
 }
 
+{
+   glibc dlopen leak
+   Memcheck:Leak
+   fun:calloc
+   fun:_dlerror_run
+   fun:dlopen@@GLIBC_2.2.5
+   fun:csync_vio_init
+}
+
+{
+   glibc dlerror leak
+   Memcheck:Leak
+   fun:realloc
+   fun:vasprintf
+   fun:asprintf
+   fun:dlerror
+}
+
 {
    glibc fnmatch invalid read
    Memcheck:Addr1