diff --git a/include/mbgl/util/utf.hpp b/include/mbgl/util/utf.hpp
deleted file mode 100644
index 3d61609c0..000000000
--- a/include/mbgl/util/utf.hpp
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef MBGL_UTIL_UTF
-#define MBGL_UTIL_UTF
-
-#include <memory>
-
-#include <boost/regex/pending/unicode_iterator.hpp>
-
-namespace mbgl {
-
-namespace util {
-
-class utf8_to_utf32 {
- public:
-    static std::u32string convert(std::string const& utf8)
-    {
-        boost::u8_to_u32_iterator<std::string::const_iterator> begin(utf8.begin());
-        boost::u8_to_u32_iterator<std::string::const_iterator> end(utf8.end());
-        return std::u32string(begin,end);
-    }
-};
-
-} // namespace util
-} // namespace mbgl
-
-#endif
diff --git a/src/mbgl/util/utf.hpp b/src/mbgl/util/utf.hpp
index d6ba2a1f2..286036c09 100644
--- a/src/mbgl/util/utf.hpp
+++ b/src/mbgl/util/utf.hpp
@@ -6,7 +6,6 @@
 #include <boost/regex/pending/unicode_iterator.hpp>
 
 namespace mbgl {
-
 namespace util {
 
 class utf8_to_utf32 {
@@ -19,6 +18,7 @@ class utf8_to_utf32 {
     }
 };
 
-}}
+} // namespace mbgl
+} // namespace util
 
 #endif