diff --git a/c_src/esqlite_nif.c b/c_src/esqlite_nif.c
index 0ab04af..b4019c3 100644
--- a/c_src/esqlite_nif.c
+++ b/c_src/esqlite_nif.c
@@ -6,6 +6,13 @@
 
 #include "sqlite3.h"
 
+
+static int on_load(ErlNifEnv* env, void** priv, ERL_NIF_TERM info)
+{
+  return 0;
+}
+
+
 static ErlNifFunc nif_funcs[] = {
 };
 
diff --git a/rebar.config b/rebar.config
index 3672c3b..26d8ce6 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,2 +1,3 @@
-{require_otp_vsn, "R14"}.
+{vrequire_otp_vsn, "R14"}.
+{port_sources, ["c_src/*.c"]}.
 {so_name, "esqlite_nif.so"}.