diff --git a/src/frontend/numparam/numpaif.h b/src/frontend/numparam/numpaif.h
new file mode 100644
index 000000000..bb795c65d
--- /dev/null
+++ b/src/frontend/numparam/numpaif.h
@@ -0,0 +1,20 @@
+/*
+ * numpaif.h
+ * external interface to spice frontend  subckt.c 
+ * $Id$
+ */
+
+#ifndef NUMPAIF_H
+#define NUMPAIF_H
+
+#define  NUPADECKCOPY 0
+#define  NUPASUBSTART 1
+#define  NUPASUBDONE  2
+#define  NUPAEVALDONE 3
+
+extern char * nupa_copy(char *s, int linenum);
+extern int    nupa_eval(char *s, int linenum);
+extern int    nupa_signal(int sig, char *info);
+extern void   nupa_scan(char * s, int linenum);
+
+#endif /* NUMPAIF_H */
diff --git a/src/frontend/numparam/numparam.h b/src/frontend/numparam/numparam.h
index dd5268109..04adc3175 100644
--- a/src/frontend/numparam/numparam.h
+++ b/src/frontend/numparam/numparam.h
@@ -5,15 +5,7 @@
 
 /*** interface to spice frontend  subckt.c ***/
 
-#define  NUPADECKCOPY 0
-#define  NUPASUBSTART 1
-#define  NUPASUBDONE  2
-#define  NUPAEVALDONE 3
-
-extern char * nupa_copy(char *s, int linenum);
-extern int    nupa_eval(char *s, int linenum);
-extern int    nupa_signal(int sig, char *info);
-extern void   nupa_scan(char * s, int linenum);
+#include "numpaif.h"
 
 /***** numparam internals ********/