diff --git a/uppsrc/Core/Core.h b/uppsrc/Core/Core.h
index 962b4281b..ce32439ce 100644
--- a/uppsrc/Core/Core.h
+++ b/uppsrc/Core/Core.h
@@ -280,8 +280,10 @@ NAMESPACE_UPP
 #include "Index.hpp"
 
 #ifdef flagSVO_VALUE
+#ifndef SVO_VALUE
 #define SVO_VALUE
 #endif
+#endif
 
 #include "OldValue.h"
 
diff --git a/uppsrc/Core/config.h b/uppsrc/Core/config.h
index 7da0bd621..7d358b02f 100644
--- a/uppsrc/Core/config.h
+++ b/uppsrc/Core/config.h
@@ -1,3 +1,5 @@
+#include <uppconfig.h>
+
 #if __GNUC__
 
 	#define GCC_VERSION (__GNUC__ * 10000 \
diff --git a/uppsrc/uppconfig.h b/uppsrc/uppconfig.h
new file mode 100644
index 000000000..6f5c525b8
--- /dev/null
+++ b/uppsrc/uppconfig.h
@@ -0,0 +1 @@
+#define SVO_VALUE