diff --git a/visualc/src/include/ngspice/config.h b/visualc/src/include/ngspice/config.h
index 996df4747..e0e160020 100644
--- a/visualc/src/include/ngspice/config.h
+++ b/visualc/src/include/ngspice/config.h
@@ -491,7 +491,7 @@
 #define PACKAGE_VERSION VERSION
 
 /* Define if we want predictor algorithm */
-/* #undef PREDICTOR */
+#define PREDICTOR
 
 /* Define to 1 if the C compiler supports function prototypes. */
 /* #undef PROTOTYPES */