diff --git a/Cargo.lock b/Cargo.lock
index 5893a29..c564a2a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -36,6 +36,11 @@ name = "hashbrown"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "libm"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "num-traits"
 version = "0.2.9"
@@ -68,6 +73,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "approx 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libm 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ordered-float 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "stb_truetype 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -83,6 +89,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libm 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [metadata]
@@ -92,6 +99,7 @@ dependencies = [
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 "checksum fontdue 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3ce5d972ee28d2830f868d3e1398721e0966a32113b888d8553712b50b1d03"
 "checksum hashbrown 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1de41fb8dba9714efd92241565cdff73f78508c95697dd56787d3cba27e2353"
+"checksum libm 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7fc7aa29613bd6a620df431842069224d8bc9011086b1db4c0e0cd47fa03ec9a"
 "checksum num-traits 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)" = "443c53b3c3531dfcbfa499d8893944db78474ad7a1d87fa2d94d1a2231693ac6"
 "checksum ordered-float 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "18869315e81473c951eb56ad5558bbc56978562d3ecfb87abb7a1e944cea4518"
 "checksum rusttype 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6fa38506b5cbf2fb67f915e2725cb5012f1b9a785b0ab55c4733acda5f6554ef"
diff --git a/Cargo.toml b/Cargo.toml
index a879492..66990aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,4 +9,4 @@ edition = "2018"
 [dependencies]
 fontdue = "0.0.1"
 stats_alloc = "0.1.8"
-rusttype = "0.8.1"
+rusttype = {version = "0.8.1", default-features = false, features = ["libm-math"] }
diff --git a/src/main.rs b/src/main.rs
index 8aa7b80..6e87c10 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -13,14 +13,20 @@ fn main() {
     let font = include_bytes!("../resources/WenQuanYiMicroHei-01.ttf");
     let message = " 發啊你好";
     let rtl = false;
+    println!();
+    println!("RUSTTYPE TEST:");
     test_rusttype(font, message, rtl);
+    println!("FONTDUE TEST:");
     test_fontdue(font, message, rtl);
 
     // Arabic test
     let font = include_bytes!("../resources/LateefRegOT.ttf");
     let message = "مرحبا بالعالم";
     let rtl = true;
+    println!();
+    println!("RUSTTYPE TEST:");
     test_rusttype(font, message, rtl);
+    println!("FONTDUE TEST:");
     test_fontdue(font, message, rtl);
 }