diff --git a/visualc-shared/include/ngspice/config.h b/visualc-shared/include/ngspice/config.h
index 40e89e805..d654b03e6 100644
--- a/visualc-shared/include/ngspice/config.h
+++ b/visualc-shared/include/ngspice/config.h
@@ -233,7 +233,6 @@
 
 /* Define to 1 if you have the `scalb' function. */
 #define HAVE_SCALB 1
-#define scalb _scalb
 
 /* Define to 1 if you have the `scalbn' function. */
 /* #undef HAVE_SCALBN */
@@ -500,6 +499,9 @@
 /* Define if we want spice2 sensitivity analysis */
 /* #undef WANT_SENSE2 */
 
+/* Define if you want PSS analysis */
+#define WITH_PSS /**/
+
 /* The xspice enhancements */
 #define XSPICE 1