diff --git a/src/encoder/mod.rs b/src/encoder/mod.rs
index a7f4887..bdc9d61 100644
--- a/src/encoder/mod.rs
+++ b/src/encoder/mod.rs
@@ -40,7 +40,7 @@ use self::writer::*;
 pub type Predictor = crate::tags::Predictor;
 
 #[non_exhaustive]
-#[derive(Clone, Copy, PartialEq, Default)]
+#[derive(Debug, Clone, Copy, PartialEq, Default)]
 pub enum Compression {
     #[default]
     Uncompressed,
@@ -836,9 +836,7 @@ impl<'a, W: 'a + Write + Seek, T: ColorType, K: TiffKind> ImageEncoder<'a, W, T,
         self.encoder
             .write_tag(Tag::ResolutionUnit, unit.to_u16())
             .unwrap();
-        self.encoder
-            .write_tag(Tag::XResolution, value.clone())
-            .unwrap();
+        self.encoder.write_tag(Tag::XResolution, value).unwrap();
         self.encoder.write_tag(Tag::YResolution, value).unwrap();
     }
 
diff --git a/src/encoder/tiff_value.rs b/src/encoder/tiff_value.rs
index 38eeac3..d8e9ecb 100644
--- a/src/encoder/tiff_value.rs
+++ b/src/encoder/tiff_value.rs
@@ -665,22 +665,22 @@ impl_tiff_value_for_contiguous_sequence!(Rational; 8; Type::RATIONAL);
 impl_tiff_value_for_contiguous_sequence!(SRational; 8; Type::SRATIONAL);
 
 /// Type to represent tiff values of type `IFD`
-#[derive(Clone)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub struct Ifd(pub u32);
 
 /// Type to represent tiff values of type `IFD8`
-#[derive(Clone)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub struct Ifd8(pub u64);
 
 /// Type to represent tiff values of type `RATIONAL`
-#[derive(Clone)]
+#[derive(Debug, Copy, Clone)]
 pub struct Rational {
     pub n: u32,
     pub d: u32,
 }
 
 /// Type to represent tiff values of type `SRATIONAL`
-#[derive(Clone)]
+#[derive(Debug, Copy, Clone)]
 pub struct SRational {
     pub n: i32,
     pub d: i32,