diff --git a/src/third-party/bcur/memzero.c b/src/third-party/bcur/memzero.c
index 5edc797..b19923a 100644
--- a/src/third-party/bcur/memzero.c
+++ b/src/third-party/bcur/memzero.c
@@ -6,7 +6,7 @@
 #include <string.h>
 
 #ifdef _WIN32
-#include <Windows.h>
+#include <windows.h>
 #endif
 
 #ifdef __unix__