1 files changed, 3 insertions, 3 deletions
diff --git a/src/redshift.c b/src/redshift.c
index b60236c..ca8e66b 100644
--- a/src/redshift.c
+++ b/src/redshift.c
@@ -22,7 +22,7 @@
 /* poll.h is not available on Windows but there is no Windows location provider
    using polling. On Windows, we just define some stubs to make things compile.
    */
-#ifndef _WIN32
+#ifndef WINDOWS
 # include <poll.h>
 #else
 #define POLLIN 0
@@ -36,7 +36,7 @@ int poll(struct pollfd *fds, int nfds, int timeout) { abort(); return -1; }
 
 /* pause() is not defined on windows platform but is not needed either.
    Use a noop macro instead. */
-#ifdef __WIN32__
+#ifdef WINDOWS
 # define pause()
 #endif
 
@@ -144,7 +144,7 @@ get_seconds_since_midnight(double timestamp)
 {
 	time_t t = (time_t)timestamp;
 	struct tm tm;
-#ifdef _WIN32
+#ifdef WINDOWS
 	localtime_s(&tm, &t);
 #else
 	localtime_r(&t, &tm);