diff --git a/lib/asn1/gen.c b/lib/asn1/gen.c
index 54f116d0f..2dee1f276 100644
--- a/lib/asn1/gen.c
+++ b/lib/asn1/gen.c
@@ -65,7 +65,7 @@ add_import (const char *module)
 }
 
 const char *
-filename (void)
+get_filename (void)
 {
     return orig_filename;
 }
diff --git a/lib/asn1/gen_locl.h b/lib/asn1/gen_locl.h
index 0c77888a3..1d9459d15 100644
--- a/lib/asn1/gen_locl.h
+++ b/lib/asn1/gen_locl.h
@@ -64,7 +64,7 @@ void generate_type_maybe (const Symbol *s);
 void generate_glue (const Symbol *s);
 
 void init_generate (const char *filename, const char *basename);
-const char *filename (void);
+const char *get_filename (void);
 void close_generate(void);
 void add_import(const char *module);
 int yyparse(void);