diff --git a/libs/vkd3d-shader/vkd3d_shader_main.c b/libs/vkd3d-shader/vkd3d_shader_main.c
index 47fe3d60d27f8a4d70db9588f0545e15240162cf..ae0662b83cac9c3c0fd4764d78e4feda5e95a702 100644
--- a/libs/vkd3d-shader/vkd3d_shader_main.c
+++ b/libs/vkd3d-shader/vkd3d_shader_main.c
@@ -308,7 +308,7 @@ void set_u32(struct vkd3d_bytecode_buffer *buffer, size_t offset, uint32_t value
 static void vkd3d_shader_dump_blob(const char *path, const char *prefix,
         const char *suffix, const void *data, size_t size)
 {
-    static int shader_id = 0;
+    static LONG shader_id = 0;
     char filename[1024];
     unsigned int id;
     FILE *f;