diff --git a/configure.ac b/configure.ac
index 1e55b1cc..0832a387 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,6 @@ AC_CANONICAL_HOST
 PLATFORM="unknown"
 AS_CASE([$host_os],
     [freebsd*], [PLATFORM="freebsd"],
-    [darwin*], [PLATFORM="osx"],
     [cygwin], [PLATFORM="cygwin"],
     [PLATFORM="nix"])