diff --git a/lib/cache/src/filesystem.rs b/lib/cache/src/filesystem.rs
index 6410d07c2..e00853398 100644
--- a/lib/cache/src/filesystem.rs
+++ b/lib/cache/src/filesystem.rs
@@ -70,7 +70,7 @@ impl FileSystemCache {
     /// Set the extension for this cached file.
     ///
     /// This is needed for loading native files from Windows, as otherwise
-    /// loadding the library will fail (it requires to have a `.dll` extension)
+    /// loading the library will fail (it requires a `.dll` extension)
     pub fn set_cache_extension(&mut self, ext: Option<impl ToString>) {
         self.ext = ext.map(|ext| ext.to_string());
     }
diff --git a/lib/compiler-singlepass/README.md b/lib/compiler-singlepass/README.md
index ff0ee1b23..cc2010b7a 100644
--- a/lib/compiler-singlepass/README.md
+++ b/lib/compiler-singlepass/README.md
@@ -15,4 +15,4 @@ systems where fast and consistent compilation times are very critical.
 ## Requirements
 
 At the moment, this crate depends on Rust nightly to be compiled, as it uses
-`dynasm-rs` which can only be compiled in Nigthly.
+`dynasm-rs` which can only be compiled in Nightly.
diff --git a/lib/engine-native/README.md b/lib/engine-native/README.md
index 1aab1ae7e..47c141df5 100644
--- a/lib/engine-native/README.md
+++ b/lib/engine-native/README.md
@@ -6,7 +6,7 @@ Code (PIC).
 
 After the compiler generates the machine code for the functions, the
 Native Engine generates a shared object file and links it via `dlsym`
-so it can be usable by the `wasmer` api.
+so it can be usable by the `wasmer` API.
 
 This allows Wasmer to achieve *blazing fast* native startup times.
 
@@ -15,7 +15,7 @@ This allows Wasmer to achieve *blazing fast* native startup times.
 The `wasmer-engine-native` crate requires a linker available on your
 system to generate the shared object file.
 
-We recommend having installed `gcc` or `clang`.
+We recommend having `gcc` or `clang` installed.
 
 > Note: when cross-compiling to other targets, `clang` will be the
 > default command used for compiling.
diff --git a/lib/engine-native/src/artifact.rs b/lib/engine-native/src/artifact.rs
index 8debfff62..ba313cb47 100644
--- a/lib/engine-native/src/artifact.rs
+++ b/lib/engine-native/src/artifact.rs
@@ -65,9 +65,9 @@ impl NativeArtifact {
     #[allow(dead_code)]
     const MAGIC_HEADER_ELF_64: &'static [u8] = &[0x7f, b'E', b'L', b'F', 2];
 
-    // Coff Magic heaer for Windows (64 bit)
+    // COFF Magic header for Windows (64 bit)
     #[allow(dead_code)]
-    const MAGIC_HEADER_COFF_64: &'static [u8] = &[0x4d, 0x5a];
+    const MAGIC_HEADER_COFF_64: &'static [u8] = &[b'M', b'Z'];
 
     /// Check if the provided bytes look like `NativeArtifact`.
     ///
@@ -186,7 +186,7 @@ impl NativeArtifact {
             Ok(Endianness::Big) => object::Endianness::Big,
             Err(e) => {
                 return Err(CompileError::Codegen(format!(
-                    "Can't detect the endianess for the target: {:?}",
+                    "Can't detect the endianness for the target: {:?}",
                     e
                 )))
             }