diff --git a/visualc/src/include/ngspice/config.h b/visualc/src/include/ngspice/config.h
index fcfbee658..995f1a594 100644
--- a/visualc/src/include/ngspice/config.h
+++ b/visualc/src/include/ngspice/config.h
@@ -30,8 +30,12 @@
 
 /* The xspice enhancements */
 /* XSPICE is always included in the Visual Studio compiled executable */
-#define XSPICE 1
+#define OSDI 1
+#undef XSPICE
+//#ifndef OSDI
+//#define XSPICE 1
 /* don't undef XSPICE, otherwise compilation will fail */
+//#endif
 
 /* The CIDER enhancements */
 #define CIDER 1