diff --git a/src/lib.rs b/src/lib.rs
index 4e1e94b..ff1fa68 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -385,6 +385,8 @@ impl Drop for Encoder {
 	}
 }
 
+unsafe impl Send for Encoder {}
+
 // ============================================================================
 // Decoder
 
@@ -529,6 +531,8 @@ impl Drop for Decoder {
 	}
 }
 
+unsafe impl Send for Decoder {}
+
 // ============================================================================
 // Packet Analysis
 
@@ -705,6 +709,8 @@ impl Drop for Repacketizer {
 	}
 }
 
+unsafe impl Send for Repacketizer {}
+
 // To understand why these lifetime bounds are needed, imagine that the
 // repacketizer keeps an internal Vec<&'buf [u8]>, which is added to by cat()
 // and accessed by get_nb_frames(), out(), and out_range(). To prove that these