diff --git a/.travis.yml b/.travis.yml
index 672d132..7a554ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,21 +12,23 @@
 
 before_install:
   - if [ $TRAVIS_OS_NAME == linux ]; then 
-       sudo apt-get update -qq;
-       sudo apt-get install -y --no-install-recommends libxrandr-dev libxi-dev libxxf86vm-dev libsdl2-dev;
-       wget https://github.com/glfw/glfw/releases/download/3.2.1/glfw-3.2.1.zip;
-       unzip glfw-3.2.1.zip && cd glfw-3.2.1; 
-       cmake -DBUILD_SHARED_LIBS=true -DGLFW_BUILD_EXAMPLES=false -DGLFW_BUILD_TESTS=false -DGLFW_BUILD_DOCS=false .;
-       sudo make -j $CPU_NUM install && cd ..;
+      sudo apt-get update -qq;
+      sudo apt-get install -y --no-install-recommends libxrandr-dev libxi-dev libxxf86vm-dev libsdl2-dev;
+      wget https://github.com/glfw/glfw/releases/download/3.2.1/glfw-3.2.1.zip;
+      unzip glfw-3.2.1.zip && cd glfw-3.2.1; 
+      cmake -DBUILD_SHARED_LIBS=true -DGLFW_BUILD_EXAMPLES=false -DGLFW_BUILD_TESTS=false -DGLFW_BUILD_DOCS=false .;
+      sudo make -j $CPU_NUM install && cd ..;
     fi
   - if [ $TRAVIS_OS_NAME == osx ]; then 
-       brew update;
-       brew install glfw3;
-       brew install sdl2;
+      brew update;
+      brew install glfw3;
+      brew install sdl2;
     fi
 
 script: 
   - make -C examples/example_glfw_opengl2
   - make -C examples/example_glfw_opengl3
   - make -C examples/example_sdl_opengl3
-  - if [ $TRAVIS_OS_NAME == osx ]; then xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos;
+  - if [ $TRAVIS_OS_NAME == osx ]; then 
+      xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos;
+    fi