diff --git a/lib/asn1/Makefile.am b/lib/asn1/Makefile.am
index 33596e04d..6f3453270 100644
--- a/lib/asn1/Makefile.am
+++ b/lib/asn1/Makefile.am
@@ -41,8 +41,7 @@ foo = asn1_APOptions.x asn1_AP_REP.x asn1_AP_REQ.x \
 noinst_PROGRAMS = asn1_compile
 
 asn1_compile_SOURCES = parse.y lex.l main.c hash.c symbol.c gen.c \
-	gen_encode.c gen_decode.c gen_free.c gen_length.c gen_copy.c \
-	gen_maybe.c
+	gen_encode.c gen_decode.c gen_free.c gen_length.c gen_copy.c
 
 libasn1_a_SOURCES = der_get.c der_put.c der_free.c der_length.c der_copy.c \
 		timegm.c \
diff --git a/lib/asn1/gen.c b/lib/asn1/gen.c
index 822a1c660..02dc0c717 100644
--- a/lib/asn1/gen.c
+++ b/lib/asn1/gen.c
@@ -285,7 +285,6 @@ generate_type (Symbol *s)
     generate_type_free (s);
     generate_type_length (s);
     generate_type_copy (s);
-    generate_type_maybe (s);
     fprintf(headerfile, "\n\n");
     fclose(codefile);
 }