diff --git a/WebCore/svg/SVGFontElement.cpp b/WebCore/svg/SVGFontElement.cpp

index 7d62b8c..b6dcdb1 100644

--- a/WebCore/svg/SVGFontElement.cpp

+++ b/WebCore/svg/SVGFontElement.cpp

@@ -175,7 +175,7 @@ static bool parseUnicodeRangeList(const UChar* characters, unsigned length, Vect

             UChar character = remainingCharacters[0];

             if (character == ',')

                 return false;

-            ranges.append(make_pair(character, character));

+            ranges.append(make_pair((unsigned)character, (unsigned)character));

             ++remainingCharacters;

             --remainingLength;

         }