diff --git a/ChangeLog b/ChangeLog
index f3c743b22..370991224 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-10-15  Robert Larice
+ * src/xspice/cmpp/pp_mod.c :
+    cmpp shall add a function prototype to the generated "cfunc.c" file
+
 2010-10-15  Robert Larice
  * src/ngnutmeg.c :
     visibility for the NDEVacct() prototype
diff --git a/src/xspice/cmpp/pp_mod.c b/src/xspice/cmpp/pp_mod.c
index 2ecd5cd3d..cd83231d5 100755
--- a/src/xspice/cmpp/pp_mod.c
+++ b/src/xspice/cmpp/pp_mod.c
@@ -153,6 +153,8 @@ void preprocess_mod_file (
 
    fprintf (mod_yyout, "#line 1 \"%s\"\n", filename);
    fprintf (mod_yyout, "#include \"cm.h\"\n");
+   fprintf (mod_yyout, "extern void %s(Mif_Private_t *);\n",
+      ifs_table.name.c_fcn_name);
    fprintf (mod_yyout, "#line 1 \"%s\"\n", filename);
 
    mod_yylineno = 1;