Index: b/cipher/elgamal.c
===================================================================
--- b/cipher/elgamal.c
+++ b/cipher/elgamal.c
@@ -384,6 +384,7 @@
     qbits++;
   g = mpi_alloc (1);
   p = _gcry_generate_elg_prime ( 0, nbits, qbits, g, ret_factors );
+  gcry_assert (p);
   mpi_sub_ui (p_min1, p, 1);
 
   if (DBG_CIPHER)