diff --git a/finder_info_helper.cpp b/finder_info_helper.cpp
index 4cc8a31..1ef9f47 100644
--- a/finder_info_helper.cpp
+++ b/finder_info_helper.cpp
@@ -31,7 +31,7 @@
 
 #if defined(_WIN32)
 #define _prodos_file_type _afp.prodos_file_type
-#define _prodos_aux_type _afp.prodos_file_type
+#define _prodos_aux_type _afp.prodos_aux_type
 #define _finder_info _afp.finder_info
 #endif