diff --git a/src/core.c b/src/core.c
index a1dd5bfba..ea3d1175b 100644
--- a/src/core.c
+++ b/src/core.c
@@ -1415,13 +1415,7 @@ SEXP rnng_weakref_value(SEXP w) {
 
 }
 
-// misc ------------------------------------------------------------------------
-
-void rnng_fini(void) {
-
-  nng_fini();
-
-}
+// next mode selector ----------------------------------------------------------
 
 SEXP rnng_next_mode(SEXP refhook, SEXP mark) {
 
diff --git a/src/init.c b/src/init.c
index 6cefd917c..659bf40b9 100644
--- a/src/init.c
+++ b/src/init.c
@@ -136,11 +136,6 @@ static void ReleaseObjects(void) {
   R_ReleaseObject(nano_aioFormals);
 }
 
-static const R_CMethodDef cMethods[] = {
-  {"rnng_fini", (DL_FUNC) &rnng_fini, 0},
-  {NULL, NULL, 0, NULL}
-};
-
 static const R_CallMethodDef callMethods[] = {
   {"rnng_aio_call", (DL_FUNC) &rnng_aio_call, 1},
   {"rnng_aio_get_msg", (DL_FUNC) &rnng_aio_get_msg, 1},
@@ -230,7 +225,7 @@ void attribute_visible R_init_nanonext(DllInfo* dll) {
 #if NNG_MAJOR_VERSION == 1 && NNG_MINOR_VERSION < 6
   nng_mtx_alloc(&shr_mtx);
 #endif
-  R_registerRoutines(dll, cMethods, callMethods, NULL, externalMethods);
+  R_registerRoutines(dll, NULL, callMethods, NULL, externalMethods);
   R_useDynamicSymbols(dll, FALSE);
   R_forceSymbols(dll, TRUE);
 }
diff --git a/src/nanonext.h b/src/nanonext.h
index 6277a3868..0215326ab 100644
--- a/src/nanonext.h
+++ b/src/nanonext.h
@@ -238,7 +238,6 @@ extern SEXP rnng_cv_wait(SEXP);
 extern SEXP rnng_dial(SEXP, SEXP, SEXP, SEXP, SEXP);
 extern SEXP rnng_dialer_close(SEXP);
 extern SEXP rnng_dialer_start(SEXP, SEXP);
-extern void rnng_fini(void);
 extern SEXP rnng_get_opt(SEXP, SEXP);
 extern SEXP rnng_is_error_value(SEXP);
 extern SEXP rnng_is_nul_byte(SEXP);