1 files changed, 1 insertions, 1 deletions

diff --git a/src/json/json_mhd.c b/src/json/json_mhd.c
index b6ab2d116..2112d4646 100644
--- a/src/json/json_mhd.c
+++ b/src/json/json_mhd.c
@@ -126,7 +126,7 @@ buffer_append (struct Buffer *buf,
 {
   if (buf->fill + data_size > max_size)
     return GNUNET_NO;
-  if (data_size + buf->fill > buf->alloc)
+  if (buf->fill + data_size > buf->alloc)
   {
     char *new_buf;
     size_t new_size = buf->alloc;