diff --git a/Util/IniFileUtil.h b/Util/IniFileUtil.h
index 812db8e6a..08f1aae5f 100644
--- a/Util/IniFileUtil.h
+++ b/Util/IniFileUtil.h
@@ -32,6 +32,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include <boost/filesystem.hpp>
 #include <boost/filesystem/fstream.hpp>
+#include <boost/regex.hpp>
 
 #include <regex>
 #include <string>
@@ -40,21 +41,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 inline std::string ReadIniFileAndLowerContents(const boost::filesystem::path &path)
 {
     boost::filesystem::fstream config_stream(path);
-    std::string input_str((std::istreambuf_iterator<char>(config_stream)),
+    std::string ini_file_content((std::istreambuf_iterator<char>(config_stream)),
                           std::istreambuf_iterator<char>());
-    std::regex regex("\\w+=");
-
-    std::string output = input_str;
-    const std::sregex_token_iterator end;
-    for (std::sregex_token_iterator i(input_str.begin(), input_str.end(), regex); i != end; ++i)
-    {
-        std::string match = *i;
-        std::string new_regex = *i;
-        std::transform(new_regex.begin(), new_regex.end(), new_regex.begin(), ::tolower);
-        SimpleLogger().Write() << match << " - " << new_regex;
-        output = std::regex_replace(output, std::regex(match), new_regex);
-    }
-    return output;
+    boost::regex regex( "^([^=]*)" ); //match from start of line to '='
+    std::string format( "\\L$1\\E" ); //replace with downcased substring
+    return boost::regex_replace( ini_file_content, regex, format );
 }
 
 #endif // INI_FILE_UTIL_H