diff --git a/configure.ac b/configure.ac
index 289a1bed..fe428c4d 100755
--- a/configure.ac
+++ b/configure.ac
@@ -58,6 +58,10 @@ AC_LANG_POP(C++)
 
 TORRENT_WITH_TINYXML2
 
+#if test ${with_xmlrpc_tinyxml2+y} && test ${with_xmlrpc_c+y}; then
+#  AC_MSG_ERROR([--with-xmlrpc-c and --with-xmlrpc-tinyxml2 cannot be used together. Please choose only one])
+#fi
+
 AC_DEFINE(HAVE_CONFIG_H, 1, true if config.h was included)
 AC_DEFINE(USER_AGENT, [std::string(PACKAGE "/" VERSION "/") + torrent::version()], Http user agent)
 
diff --git a/src/rpc/xmlrpc_c.cc b/src/rpc/xmlrpc_c.cc
index a0642b2b..8592f8c9 100644
--- a/src/rpc/xmlrpc_c.cc
+++ b/src/rpc/xmlrpc_c.cc
@@ -37,6 +37,10 @@
 #include "config.h"
 
 #ifdef HAVE_XMLRPC_C
+#ifdef HAVE_XMLRPC_TINYXML2
+#error HAVE_XMLRPC_C and HAVE_XMLRPC_TINYXML2 cannot be used together. Please choose only one
+#endif
+
 #include <cctype>
 #include <string>
 
diff --git a/src/rpc/xmlrpc_tinyxml2.cc b/src/rpc/xmlrpc_tinyxml2.cc
index 0ec2c540..cdcea478 100644
--- a/src/rpc/xmlrpc_tinyxml2.cc
+++ b/src/rpc/xmlrpc_tinyxml2.cc
@@ -37,7 +37,9 @@
 #include "config.h"
 
 #ifdef HAVE_XMLRPC_TINYXML2
-#ifndef HAVE_XMLRPC_C
+#ifdef HAVE_XMLRPC_C
+#error HAVE_XMLRPC_C and HAVE_XMLRPC_TINYXML2 cannot be used together. Please choose only one
+#endif
 
 #include <cctype>
 #include <string>
@@ -449,5 +451,4 @@ bool    XmlRpc::is_valid() const { return m_isValid; }
 
 }
 
-#endif // ifndef HAVE_XMLRPC_C
-#endif // ifdef HAVE_XMLRPC_TINYXML2
+#endif