diff --git a/test/main-override.cpp b/test/main-override.cpp
index 8743fd0f..16c40281 100644
--- a/test/main-override.cpp
+++ b/test/main-override.cpp
@@ -14,7 +14,9 @@
 #include <mimalloc.h>
 #include <assert.h>
 
+#ifdef _WIN32
 #include <mimalloc-new-delete.h>
+#endif
 
 #ifdef _WIN32
 #include <windows.h>