diff --git a/src/transaction.cc b/src/transaction.cc
index f03a97f7..fb4dabb4 100644
--- a/src/transaction.cc
+++ b/src/transaction.cc
@@ -541,13 +541,14 @@ int Transaction::addRequestHeader(const std::string& key,
 
     if (keyl == "content-type") {
         std::string multipart("multipart/form-data");
+        std::string urlencoded("application/x-www-form-urlencoded;");
         std::string l = utils::string::tolower(value);
         if (l.compare(0, multipart.length(), multipart) == 0) {
             this->m_requestBodyType = MultiPartRequestBody;
             m_variableReqbodyProcessor.set("MULTIPART", m_variableOffset);
         }
 
-        if (l == "application/x-www-form-urlencoded") {
+        if (l.compare(0, urlencoded.length(), urlencoded) == 0) {
             this->m_requestBodyType = WWWFormUrlEncoded;
             m_variableReqbodyProcessor.set("URLENCODED", m_variableOffset);
         }