1 files changed, 1 insertions, 1 deletions
diff --git a/e_os2.h b/e_os2.h
index 2b1b78ffea2a5..7be9989ac3a10 100644
--- a/e_os2.h
+++ b/e_os2.h
@@ -101,7 +101,7 @@ extern "C" {
 #  undef OPENSSL_SYS_UNIX
 #  define OPENSSL_SYS_WIN32_UWIN
 # else
-#  if defined(__CYGWIN32__) || defined(OPENSSL_SYSNAME_CYGWIN32)
+#  if defined(__CYGWIN__) || defined(OPENSSL_SYSNAME_CYGWIN)
 #   undef OPENSSL_SYS_UNIX
 #   define OPENSSL_SYS_WIN32_CYGWIN
 #  else