1 files changed, 1 insertions, 1 deletions
diff --git a/src/util/util.c b/src/util/util.c
index 489928dd4..19924b89a 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -37,7 +37,7 @@ const char *
 TALER_b2s (const void *buf,
            size_t buf_size)
 {
-  static char ret[9];
+  static GNUNET_THREAD_LOCAL char ret[9];
   struct GNUNET_HashCode hc;
   char *tmp;