diff --git a/partials/libbson/BsonValue.vapi b/partials/libbson/BsonValue.vapi
new file mode 100644
index 0000000..649ec83
--- /dev/null
+++ b/partials/libbson/BsonValue.vapi
@@ -0,0 +1,114 @@
+
+//FIXME
+
+/**
+ * bson_value_t
+ */
+
+[CCode (cname = "bson_value_t", free_function = "bson_value_destroy", copy_function = "bson_value_copy", has_type_id = false)]
+[Compact]
+public struct BsonValue {
+
+    public BsonType value_type;
+
+    //Union
+    [CCode (cname = "value.v_oid")]
+    public unowned BsonOid v_oid;
+
+    [CCode (cname = "value.v_int64")]
+    public unowned int64 v_int64;
+
+    [CCode (cname = "value.v_int32")]
+    public unowned int32 v_int32;
+
+    [CCode (cname = "value.v_int8")]
+    public unowned int8 v_int8;
+
+    [CCode (cname = "value.v_double")]
+    public unowned double v_double;
+
+    [CCode (cname = "value.v_bool")]
+    public unowned bool v_bool;
+
+    [CCode (cname = "value.v_datetime")]
+    public unowned int64 v_datetime;
+
+    [CCode (cname = "value.v_timestamp")]
+    public unowned BsonValueTimeStamp v_timestamp;
+
+    [CCode (cname = "value.v_utf8")]
+    public unowned BsonValueUtf8 v_utf8;
+
+    [CCode (cname = "value.v_doc")]
+    public unowned BsonValueDoc v_doc;
+
+    [CCode (cname = "value.v_binary")]
+    public unowned BsonValueBinary v_binary;
+
+    [CCode (cname = "value.v_regex")]
+    public unowned BsonValueRegex v_regex;
+
+    [CCode (cname = "value.v_dbpointer")]
+    public unowned BsonValueDbpointer v_dbpointer;
+
+    [CCode (cname = "value.v_code")]
+    public unowned BsonValueCode v_code;
+
+    [CCode (cname = "value.v_codewscope")]
+    public unowned BsonValueCodewscope v_codewscope;
+
+    [CCode (cname = "value.v_symbol")]
+    public unowned BsonValueSymbol v_symbol;
+
+}
+
+
+public struct BsonValueTimeStamp {
+    public unowned uint32 timestamp;
+    public unowned uint32 increment;
+}
+
+
+public struct BsonValueUtf8 {
+    public unowned uint32 len;
+    public unowned string str;
+}
+
+public struct BsonValueDoc {
+    public unowned uint32 data_len;
+    public unowned uint8[] data;
+}
+
+public struct BsonValueBinary {
+    public unowned uint32 data_len;
+    public unowned uint8[] data;
+    public unowned BsonSubtype subtype;
+}
+
+public struct BsonValueRegex {
+    public unowned string regex;
+    public unowned string options;
+}
+
+public struct BsonValueDbpointer {
+    public unowned string collection;
+    public unowned uint32 collection_len;
+    public unowned BsonOid oid;
+}
+
+public struct BsonValueCode {
+    public unowned uint32 code_len;
+    public unowned string code;
+}
+
+public struct BsonValueCodewscope {
+    public unowned uint32 code_len;
+    public unowned string code;
+    public unowned uint32 scope_len;
+    public unowned uint8[] scope_data;
+}
+
+public struct BsonValueSymbol {
+    public unowned uint32 len;
+    public unowned string symbol;
+}