1 files changed, 1 insertions, 0 deletions

diff --git a/src/set/ibf.c b/src/set/ibf.c
index 739b97339..383ce3daf 100644
--- a/src/set/ibf.c
+++ b/src/set/ibf.c
@@ -280,6 +280,7 @@ ibf_read_slice (const void *buf, uint32_t start, uint32_t count, struct Invertib
   struct IBF_KeyHash *key_hash_src;
   struct IBF_Count *count_src;
 
+  GNUNET_assert (count > 0);
   GNUNET_assert (start + count <= ibf->size);
 
   /* copy keys */