diff --git a/agent/gpg-agent.c b/agent/gpg-agent.c
index 710357c72..5e2e4bfd7 100644
--- a/agent/gpg-agent.c
+++ b/agent/gpg-agent.c
@@ -1055,7 +1055,7 @@ main (int argc, char **argv )
     }
 
   /* Initialize the secure memory. */
-  gcry_control (GCRYCTL_INIT_SECMEM, 32768, 0);
+  gcry_control (GCRYCTL_INIT_SECMEM, SECMEM_BUFFER_SIZE, 0);
   maybe_setuid = 0;
 
   /*