1 files changed, 1 insertions, 0 deletions

diff --git a/src/util/common_allocation.c b/src/util/common_allocation.c
index be2538c3f..80047bb52 100644
--- a/src/util/common_allocation.c
+++ b/src/util/common_allocation.c
@@ -484,6 +484,7 @@ GNUNET_asprintf (char **buf,
   va_start (args, format);
   ret = VSNPRINTF (NULL, 0, format, args);
   va_end (args);
+  GNUNET_assert (ret >= 0);
   *buf = GNUNET_malloc (ret + 1);
   va_start (args, format);
   ret = VSPRINTF (*buf, format, args);