diff --git a/src/ttyname.c b/src/ttyname.c
index 3e2af41a8..821dc2366 100644
--- a/src/ttyname.c
+++ b/src/ttyname.c
@@ -155,7 +155,7 @@ sudo_ttyname_dev(dev_t tdev)
 
     debug_return_str(estrdup(tty));
 }
-#elif defined(__linux__)
+#elif defined(HAVE_STRUCT_PSINFO_PR_TTYDEV) || defined(__linux__)
 /*
  * Devices to search before doing a breadth-first scan.
  */