diff --git a/zsnes/src/win/safelib.c b/zsnes/src/win/safelib.c
index 92a27892..e348fbb6 100644
--- a/zsnes/src/win/safelib.c
+++ b/zsnes/src/win/safelib.c
@@ -16,11 +16,11 @@
 #define fdopen _fdopen
 
 #ifndef STDIN_FILENO
-#define STDIN_FILENO fileno(stdin)
+#define STDIN_FILENO 0
 #endif
 
 #ifndef STDOUT_FILENO
-#define STDOUT_FILENO fileno(stdout)
+#define STDOUT_FILENO 1
 #endif
 
 //Introducing a popen which doesn't return until it knows for sure of program launched or couldn't open -Nach