diff --git a/gstreamer-audio/src/audio_format_info.rs b/gstreamer-audio/src/audio_format_info.rs
index 05de0e664..7c6b0a7d8 100644
--- a/gstreamer-audio/src/audio_format_info.rs
+++ b/gstreamer-audio/src/audio_format_info.rs
@@ -17,7 +17,7 @@ use std::str;
 use glib;
 use glib::translate::{from_glib, FromGlib, FromGlibPtrNone, ToGlib, ToGlibPtr, ToGlibPtrMut};
 
-#[derive(PartialEq, Eq, Debug)]
+#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 pub enum AudioEndianness {
     Unknown,
     LittleEndian = 1234,
diff --git a/gstreamer-video/src/video_format.rs b/gstreamer-video/src/video_format.rs
index bb630c106..455c2bf5d 100644
--- a/gstreamer-video/src/video_format.rs
+++ b/gstreamer-video/src/video_format.rs
@@ -14,7 +14,7 @@ use std::str;
 
 use glib::translate::{from_glib, FromGlib, ToGlib, ToGlibPtr};
 
-#[derive(PartialEq, Eq, Debug)]
+#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 pub enum VideoEndianness {
     Unknown,
     LittleEndian = 1234,
diff --git a/gstreamer/src/element.rs b/gstreamer/src/element.rs
index 38d853b86..f6f0f405a 100644
--- a/gstreamer/src/element.rs
+++ b/gstreamer/src/element.rs
@@ -54,6 +54,7 @@ impl Element {
     }
 }
 
+#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 pub enum ElementMessageType {
     Error,
     Warning,
diff --git a/gstreamer/src/value.rs b/gstreamer/src/value.rs
index 0dbe85d2d..4e6f74eca 100644
--- a/gstreamer/src/value.rs
+++ b/gstreamer/src/value.rs
@@ -663,6 +663,7 @@ impl<'a> glib::types::StaticType for List<'a> {
     }
 }
 
+#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
 pub enum ValueOrder {
     LessThan,
     Equal,