diff --git a/sysdeps/ieee754/dbl-64/s_nearbyint.c b/sysdeps/ieee754/dbl-64/s_nearbyint.c
index 08fe517b83..606002d680 100644
--- a/sysdeps/ieee754/dbl-64/s_nearbyint.c
+++ b/sysdeps/ieee754/dbl-64/s_nearbyint.c
@@ -72,4 +72,6 @@ __nearbyint (double x)
   return t;
 #endif /* ! USE_NEARBYINT_BUILTIN  */
 }
+#ifndef __nearbyint
 libm_alias_double (__nearbyint, nearbyint)
+#endif
diff --git a/sysdeps/ieee754/flt-32/s_nearbyintf.c b/sysdeps/ieee754/flt-32/s_nearbyintf.c
index b270749f4c..5dd0e8f8af 100644
--- a/sysdeps/ieee754/flt-32/s_nearbyintf.c
+++ b/sysdeps/ieee754/flt-32/s_nearbyintf.c
@@ -68,4 +68,6 @@ __nearbyintf (float x)
   return t;
 #endif /* ! USE_NEARBYINT_BUILTIN  */
 }
+#ifndef __nearbyintf
 libm_alias_float (__nearbyint, nearbyint)
+#endif