diff --git a/src/colors.rs b/src/colors.rs
index 3827e247..a5365d2c 100644
--- a/src/colors.rs
+++ b/src/colors.rs
@@ -32,13 +32,11 @@ impl Display for ColorType {
     #[inline]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            Self::Grayscale { .. } => Display::fmt("Grayscale", f),
-            Self::RGB { .. } => Display::fmt("RGB", f),
-            Self::Indexed { palette } => {
-                Display::fmt(&format!("Indexed ({} colors)", palette.len()), f)
-            }
-            Self::GrayscaleAlpha => Display::fmt("Grayscale + Alpha", f),
-            Self::RGBA => Display::fmt("RGB + Alpha", f),
+            Self::Grayscale { .. } => write!(f, "Grayscale"),
+            Self::RGB { .. } => write!(f, "RGB"),
+            Self::Indexed { palette } => write!(f, "Indexed ({} colors)", palette.len()),
+            Self::GrayscaleAlpha => write!(f, "Grayscale + Alpha"),
+            Self::RGBA => write!(f, "RGB + Alpha"),
         }
     }
 }
diff --git a/src/deflate/mod.rs b/src/deflate/mod.rs
index e3be0c4f..b8b4ceab 100644
--- a/src/deflate/mod.rs
+++ b/src/deflate/mod.rs
@@ -49,9 +49,9 @@ impl Display for Deflaters {
     #[inline]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            Self::Libdeflater { compression } => Display::fmt(&format!("zc = {}", compression), f),
+            Self::Libdeflater { compression } => write!(f, "zc = {compression}"),
             #[cfg(feature = "zopfli")]
-            Self::Zopfli { iterations } => Display::fmt(&format!("zopfli, zi = {}", iterations), f),
+            Self::Zopfli { iterations } => write!(f, "zopfli, zi = {iterations}"),
         }
     }
 }