diff --git a/src/util/StringUtil.cc b/src/util/StringUtil.cc
index 5bcf1efb..edaf6df8 100644
--- a/src/util/StringUtil.cc
+++ b/src/util/StringUtil.cc
@@ -82,11 +82,6 @@ void StringUtil::url_decode(std::string& str)
 	if (str.empty())
 		return;
 
-	char ch = str.back();
-
-	str.pop_back();
-	str.push_back(ch);
-
 	size_t sz = url_decode(const_cast<char *>(str.c_str()), str.size());
 
 	str.resize(sz);