diff --git a/config.h b/config.h
index 0f1310ba..cfdb6410 100644
--- a/config.h
+++ b/config.h
@@ -204,7 +204,7 @@ typedef unsigned int word32;
 #if defined(_MSC_VER) || defined(__BORLANDC__)
 	typedef unsigned __int64 word64;
 	#define W64LIT(x) x##ui64
-#elif (_LP64 || __LP64__) && !defined(__SUNPRO_CC)
+#elif (_LP64 || __LP64__)
 	typedef unsigned long word64;
 	#define W64LIT(x) x##UL
 #else