diff --git a/src/cpp/ripple/PathDB.h b/src/cpp/ripple/PathDB.h
index 59a4d5747..0a22843c1 100644
--- a/src/cpp/ripple/PathDB.h
+++ b/src/cpp/ripple/PathDB.h
@@ -7,7 +7,12 @@
 #include "TaggedCache.h"
 
 typedef std::pair<uint160, uint160> currencyIssuer_t;
+
+#ifdef C11X
 typedef std::pair<const uint160&, const uint160&> currencyIssuer_ct;
+#else
+typedef std::pair<uint160, uint160> currencyIssuer_ct;
+#endif
 
 class PathDBEntry
 {