diff --git a/win32/zipconf.h b/win32/zipconf.h
index 861595a..e2434ee 100644
--- a/win32/zipconf.h
+++ b/win32/zipconf.h
@@ -21,7 +21,13 @@
 #if !defined(__STDC_FORMAT_MACROS)
 #define __STDC_FORMAT_MACROS 1
 #endif
+#if defined(_MSC_VER) && _MSC_VER < 1700
+#include <stdint.h>
+#define PRIu32 "lu"
+#define PRIu64 "llu"
+#else
 #include <inttypes.h>
+#endif
 
 typedef int8_t zip_int8_t;
 typedef uint8_t zip_uint8_t;