diff --git a/src/include/ngspice/ngspice.h b/src/include/ngspice/ngspice.h
index e4f2cbe40..5478ac3cf 100644
--- a/src/include/ngspice/ngspice.h
+++ b/src/include/ngspice/ngspice.h
@@ -234,6 +234,10 @@ extern char *Inp_Path;
 extern int ARCHme;	/* My logical process number */
 extern int ARCHsize;	/* Total number of processes */
 
+#ifdef ADMS 
+int load_vadev(CKTcircuit *ckt, char *name);
+#endif
+
 #ifdef TCL_MODULE
 
 #include <errno.h>