diff --git a/src/nhttpd/yhttpd_core/helper.cpp b/src/nhttpd/yhttpd_core/helper.cpp
index e2449fbbd..d529127fc 100644
--- a/src/nhttpd/yhttpd_core/helper.cpp
+++ b/src/nhttpd/yhttpd_core/helper.cpp
@@ -203,9 +203,12 @@ std::string decodeString(std::string encodedString) {
 			iStr = strtoul(hex, NULL, 16); /* convert to Hex char */
 			result += (char) iStr;
 			count += 3;
+#if 0
+//why decode '+' to ' ' ?
 		} else if (string[count] == '+') {
 			result += ' ';
 			count++;
+#endif
 		} else {
 			result += string[count];
 			count++;