diff --git a/include/xrpl/basics/Number.h b/include/xrpl/basics/Number.h
index 28c7b1dbda..2bdb51e294 100644
--- a/include/xrpl/basics/Number.h
+++ b/include/xrpl/basics/Number.h
@@ -186,7 +186,7 @@ struct MantissaRange final
 
     class Access
     {
-        static constexpr MantissaRange const&
+        static MantissaRange const&
         mantissaRange(MantissaScale scale);
 
         friend Number;
diff --git a/src/libxrpl/basics/Number.cpp b/src/libxrpl/basics/Number.cpp
index dd31561142..de4b8ec6dd 100644
--- a/src/libxrpl/basics/Number.cpp
+++ b/src/libxrpl/basics/Number.cpp
@@ -68,7 +68,7 @@ to_string(Number::RoundingMode const& round)
     }
 }
 
-constexpr MantissaRange const&
+MantissaRange const&
 MantissaRange::Access::mantissaRange(MantissaScale scale)
 {
     static constexpr MantissaRange kSmall{MantissaScale::Small};