diff --git a/src/ripple/core/impl/Config.cpp b/src/ripple/core/impl/Config.cpp
index 0d1e14b14..8735344f8 100644
--- a/src/ripple/core/impl/Config.cpp
+++ b/src/ripple/core/impl/Config.cpp
@@ -28,6 +28,7 @@
 #include <beast/http/URL.h>
 #include <beast/module/core/text/LexicalCast.h>
 #include <beast/streams/debug_ostream.h>
+#include <beast/utility/ci_char_traits.h>
 #include <boost/algorithm/string.hpp>
 #include <boost/format.hpp>
 #include <boost/regex.hpp>
@@ -378,15 +379,15 @@ void Config::loadFromString (std::string const& fileContents)
 
     if (getSingleSection (secConfig, SECTION_NODE_SIZE, strTemp, j_))
     {
-        if (strTemp == "tiny")
+        if (beast::ci_equal(strTemp, "tiny"))
             NODE_SIZE = 0;
-        else if (strTemp == "small")
+        else if (beast::ci_equal(strTemp, "small"))
             NODE_SIZE = 1;
-        else if (strTemp == "medium")
+        else if (beast::ci_equal(strTemp, "medium"))
             NODE_SIZE = 2;
-        else if (strTemp == "large")
+        else if (beast::ci_equal(strTemp, "large"))
             NODE_SIZE = 3;
-        else if (strTemp == "huge")
+        else if (beast::ci_equal(strTemp, "huge"))
             NODE_SIZE = 4;
         else
         {
@@ -453,11 +454,9 @@ void Config::loadFromString (std::string const& fileContents)
 
     if (getSingleSection (secConfig, SECTION_LEDGER_HISTORY, strTemp, j_))
     {
-        boost::to_lower (strTemp);
-
-        if (strTemp == "full")
+        if (beast::ci_equal(strTemp, "full"))
             LEDGER_HISTORY = 1000000000u;
-        else if (strTemp == "none")
+        else if (beast::ci_equal(strTemp, "none"))
             LEDGER_HISTORY = 0;
         else
             LEDGER_HISTORY = beast::lexicalCastThrow <std::uint32_t> (strTemp);
@@ -465,11 +464,9 @@ void Config::loadFromString (std::string const& fileContents)
 
     if (getSingleSection (secConfig, SECTION_FETCH_DEPTH, strTemp, j_))
     {
-        boost::to_lower (strTemp);
-
-        if (strTemp == "none")
+        if (beast::ci_equal(strTemp, "none"))
             FETCH_DEPTH = 0;
-        else if (strTemp == "full")
+        else if (beast::ci_equal(strTemp, "full"))
             FETCH_DEPTH = 1000000000u;
         else
             FETCH_DEPTH = beast::lexicalCastThrow <std::uint32_t> (strTemp);