diff --git a/enum.go b/enum.go
index 2e979d9..2db0474 100644
--- a/enum.go
+++ b/enum.go
@@ -160,7 +160,7 @@ func (f *EnumField) parse(p *Parser) error {
 	}
 	i, err := p.nextInteger()
 	if err != nil {
-		return p.unexpected(lit, "enum field integer", f)
+		return p.unexpected(err.Error(), "enum field integer", f)
 	}
 	f.Integer = i
 	pos, tok, lit = p.next()
diff --git a/enum_test.go b/enum_test.go
index 5efa381..bf7a89f 100644
--- a/enum_test.go
+++ b/enum_test.go
@@ -90,3 +90,21 @@ enum EnumAllowingAlias {
 		t.Errorf("got [%v] want [%v]", got, want)
 	}
 }
+
+func TestEnumWithHex(t *testing.T) {
+	src := `enum Flags {
+		  FLAG1 = 0x11;
+		}`
+	p := newParserOn(src)
+	enum := new(Enum)
+	p.next()
+	if err := enum.parse(p); err != nil {
+		t.Fatal(err)
+	}
+	if got, want := len(enum.Elements), 1; got != want {
+		t.Errorf("got [%v] want [%v]", got, want)
+	}
+	if got, want := enum.Elements[0].(*EnumField).Integer, 17; got != want {
+		t.Errorf("got [%v] want [%v]", got, want)
+	}
+}
diff --git a/parser.go b/parser.go
index 9e39042..4077db7 100644
--- a/parser.go
+++ b/parser.go
@@ -143,6 +143,11 @@ func (p *Parser) nextInteger() (i int, err error) {
 	if tok != tIDENT {
 		return 0, errors.New("non integer")
 	}
+	if strings.HasPrefix(lit, "0x") {
+		// hex decode
+		i64, err := strconv.ParseInt(lit, 0, 64)
+		return int(i64), err
+	}
 	i, err = strconv.Atoi(lit)
 	return
 }