diff --git a/util.h b/util.h
index faf893a..3c13cc4 100644
--- a/util.h
+++ b/util.h
@@ -60,7 +60,8 @@ void weprintf (const char *fmt, ...);
 } while (0)
 
 #define DP(point) ((void)(gcry_log_debugpnt (# point, point, ec_ctx)))
-#define DM(mpi) ((void)(gcry_log_debugmpi (# mpi, mpi, ec_ctx)))
+#define DM(mpi) ((void)(gcry_log_debugmpi (# mpi, mpi)))
+#define DS(sexp) ((void)(gcry_log_debugsxp (# sexp, sexp)))
 
 #else /* ifdef NDEBUG */