diff --git a/src/codec/packet/mod.rs b/src/codec/packet/mod.rs
index 6c8f7b5..05a27da 100644
--- a/src/codec/packet/mod.rs
+++ b/src/codec/packet/mod.rs
@@ -15,6 +15,7 @@ use ::{Error, Rational, format};
 pub struct Packet(AVPacket);
 
 unsafe impl Send for Packet { }
+unsafe impl Sync for Packet { }
 
 impl Packet {
 	pub unsafe fn as_ptr(&self) -> *const AVPacket {