diff --git a/src/util/memory_manager.cpp b/src/util/memory_manager.cpp
index 3fe71c5e3ea..a325afca75b 100644
--- a/src/util/memory_manager.cpp
+++ b/src/util/memory_manager.cpp
@@ -163,7 +163,7 @@ unsigned long long memory::get_max_used_memory() {
 }
 
 #if defined(_WINDOWS)
-#include <Windows.h>
+#include <windows.h>
 #endif
 
 unsigned long long memory::get_max_memory_size() {