diff --git a/Python/bootstrap_hash.c b/Python/bootstrap_hash.c
index e2afba2..58b0802 100644
--- a/Python/bootstrap_hash.c
+++ b/Python/bootstrap_hash.c
@@ -116,7 +116,7 @@
     flags = blocking ? 0 : GRND_NONBLOCK;
     dest = buffer;
     while (0 < size) {
-#ifdef sun
+#if defined(__sun) && defined(__SVR4)
         /* Issue #26735: On Solaris, getrandom() is limited to returning up
            to 1024 bytes. Call it multiple times if more bytes are
            requested. */
@@ -266,7 +266,7 @@
     }
     return 1;
 }
-#endif /* defined(HAVE_GETENTROPY) && !defined(sun) */
+#endif /* defined(HAVE_GETENTROPY) && !(defined(__sun) && defined(__SVR4)) */
 
 
 static struct {