diff --git a/src/main.rs b/src/main.rs
index 1cc55c2..e43b6bc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,8 +2,8 @@ extern crate ethereum_bn128;
 extern crate parity_bytes as bytes;
 extern crate rustc_hex;
 
-use std::os::raw::c_char;
 use std::ffi::CStr;
+use std::os::raw::c_char;
 
 use rustc_hex::FromHex;
 use rustc_hex::ToHex;
@@ -12,67 +12,61 @@ use bytes::BytesRef;
 
 #[no_mangle]
 pub fn ec_mul(input_hex_ptr: *const c_char) -> *const c_char {
-	let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
-	let input_str: &str = input_hex.to_str().unwrap();
-	let input_parsed = FromHex::from_hex(input_str).unwrap();
+    let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
+    let input_str: &str = input_hex.to_str().unwrap();
+    let input_parsed = FromHex::from_hex(input_str).unwrap();
 
-	let mut output = vec![0u8; 64];
-	match ethereum_bn128::bn128_mul(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
-		Ok(_) => {
-			let mut output_hex = output.to_hex();
-			output_hex.push_str("\0");
-			return output_hex.as_ptr() as *const c_char
-		}
-		Err(_) => {
-			return "\0".as_ptr() as *const c_char
-		}
-	}
+    let mut output = vec![0u8; 64];
+    match ethereum_bn128::bn128_mul(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
+        Ok(_) => {
+            let mut output_hex = output.to_hex();
+            output_hex.push_str("\0");
+            return output_hex.as_ptr() as *const c_char;
+        }
+        Err(_) => return "\0".as_ptr() as *const c_char,
+    }
 }
 
 #[no_mangle]
 pub fn ec_add(input_hex_ptr: *const c_char) -> *const c_char {
-	let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
-	let input_str: &str = input_hex.to_str().unwrap();
-	let input_parsed = FromHex::from_hex(input_str).unwrap();
+    let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
+    let input_str: &str = input_hex.to_str().unwrap();
+    let input_parsed = FromHex::from_hex(input_str).unwrap();
 
-	let mut output = vec![0u8; 64];
-	match ethereum_bn128::bn128_add(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
-		Ok(_) => {
-			let mut output_hex = output.to_hex();
-			output_hex.push_str("\0");
-			return output_hex.as_ptr() as *const c_char
-		}
-		Err(_) => {
-			return "\0".as_ptr() as *const c_char
-		}
-	}
+    let mut output = vec![0u8; 64];
+    match ethereum_bn128::bn128_add(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
+        Ok(_) => {
+            let mut output_hex = output.to_hex();
+            output_hex.push_str("\0");
+            return output_hex.as_ptr() as *const c_char;
+        }
+        Err(_) => return "\0".as_ptr() as *const c_char,
+    }
 }
 
 #[no_mangle]
 pub fn ec_pairing(input_hex_ptr: *const c_char) -> *const c_char {
-	let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
-	let input_str: &str = input_hex.to_str().unwrap();
-	let input_parsed = FromHex::from_hex(input_str).unwrap();
+    let input_hex = unsafe { CStr::from_ptr(input_hex_ptr) };
+    let input_str: &str = input_hex.to_str().unwrap();
+    let input_parsed = FromHex::from_hex(input_str).unwrap();
 
-	let mut output = vec![0u8; 32];
-	match ethereum_bn128::bn128_pairing(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
-		Ok(_) => {
-			let mut output_hex = output.to_hex();
-			output_hex.push_str("\0");
-			return output_hex.as_ptr() as *const c_char
-		}
-		Err(_) => {
-			return "\0".as_ptr() as *const c_char
-		}
-	}
+    let mut output = vec![0u8; 32];
+    match ethereum_bn128::bn128_pairing(&input_parsed[..], &mut BytesRef::Fixed(&mut output[..])) {
+        Ok(_) => {
+            let mut output_hex = output.to_hex();
+            output_hex.push_str("\0");
+            return output_hex.as_ptr() as *const c_char;
+        }
+        Err(_) => return "\0".as_ptr() as *const c_char,
+    }
 }
 
-extern {
-	fn emscripten_exit_with_live_runtime();
+extern "C" {
+    fn emscripten_exit_with_live_runtime();
 }
 
 fn main() {
-	unsafe {
-		emscripten_exit_with_live_runtime();
-	}
+    unsafe {
+        emscripten_exit_with_live_runtime();
+    }
 }