diff --git a/src/seed.c b/src/seed.c
index 25e5182..11a2e3e 100644
--- a/src/seed.c
+++ b/src/seed.c
@@ -3,8 +3,8 @@
 #ifndef ED25519_NO_SEED
 
 #ifdef _WIN32
-#include <Windows.h>
-#include <Wincrypt.h>
+#include <windows.h>
+#include <wincrypt.h>
 #else
 #include <stdio.h>
 #endif
@@ -37,4 +37,4 @@ int ed25519_create_seed(unsigned char *seed) {
     return 0;
 }
 
-#endif
\ No newline at end of file
+#endif