diff --git a/src/os/src/windows/wEnv.c b/src/os/src/windows/wEnv.c
index 19351eb7c964a4c2a8a4d1d5d4d1c8ec669908dc..21c6aa66426c6184ef64dff8535745425c8f7973 100644
--- a/src/os/src/windows/wEnv.c
+++ b/src/os/src/windows/wEnv.c
@@ -48,9 +48,10 @@ void osInit() {
   strcpy(tsOsName, "Windows");
 
   const char *tmpDir = getenv("tmp");
-  if (tmpDir != NULL) {
+  if (tmpDir == NULL) {
     tmpDir = getenv("temp");
   }
+
   if (tmpDir != NULL) {
     strcpy(tsTempDir, tmpDir);
   } else {