diff --git a/examples/cocoa/AppDelegate.h b/examples/cocoa/AppDelegate.h
index f3852bda0..155a86e0d 100644
--- a/examples/cocoa/AppDelegate.h
+++ b/examples/cocoa/AppDelegate.h
@@ -5,7 +5,7 @@
 
 @property (assign, nonatomic) IBOutlet NSWindow *window;
 
-@property (assign, atomic) NSTimer *stepTimer; 
+@property (assign, atomic) NSTimer *stepTimer;
 
 -(IBAction)createGlfwWindow:(id)sender;
 
diff --git a/examples/cocoa/AppDelegate.m b/examples/cocoa/AppDelegate.m
index 59cc79ed2..787ce8d0e 100644
--- a/examples/cocoa/AppDelegate.m
+++ b/examples/cocoa/AppDelegate.m
@@ -3,7 +3,7 @@
 // Simple GLFW in Cocoa app example
 // Copyright (c) Andy Somogyi <andy.somogyi@gmail.com>
 //
-// This is a port of the GLFW basic example, originaly 
+// This is a port of the GLFW basic example, originaly
 // Copyright (c) Camilla Löwy <elmindreda@glfw.org>
 //
 // This software is provided 'as-is', without any express or implied
@@ -47,7 +47,7 @@ static void cocoaGlfwCloseWindow();
 
 -(IBAction)createGlfwWindow:(id)sender {
     NSRect frame = self.window.frame;
-    
+
     createCocoaGlfwWindow(700, 400, frame.size.width, 0);
 }
 
@@ -64,18 +64,17 @@ static void cocoaGlfwCloseWindow();
 }
 
 -(IBAction)run:(id)sender {
-    
+
     if(self.stepTimer) {
         return;
     }
-    
+
     [self.stepTimer invalidate];
-    
+
     NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:0.1
                               target:self selector:@selector(singleStep:)
                               userInfo:nil repeats:YES];
     self.stepTimer = timer;
-    
 }
 
 -(IBAction)stop:(id)sender {
@@ -138,22 +137,22 @@ static void window_refresh_callback(GLFWwindow* window)
     float ratio;
     int width, height;
     mat4x4 m, p, mvp;
-    
+
     glfwGetFramebufferSize(window, &width, &height);
     ratio = width / (float) height;
-    
+
     glViewport(0, 0, width, height);
     glClear(GL_COLOR_BUFFER_BIT);
-    
+
     mat4x4_identity(m);
     mat4x4_rotate_Z(m, m, angle);
     mat4x4_ortho(p, -ratio, ratio, -1.f, 1.f, 1.f, -1.f);
     mat4x4_mul(mvp, p, m);
-    
+
     glUseProgram(program);
     glUniformMatrix4fv(mvp_location, 1, GL_FALSE, (const GLfloat*) mvp);
     glDrawArrays(GL_TRIANGLES, 0, 3);
-    
+
     glfwSwapBuffers(window);
 }
 
@@ -165,68 +164,67 @@ static void window_close_callback(GLFWwindow* window)
 
 static void createCocoaGlfwWindow(int width, int height, int xpos, int ypos) {
     glfwSetErrorCallback(error_callback);
-    
+
     if(win) {
         printf("window is already open\n");
         fflush(stdout);
         return;
     }
-    
+
     if (!glfwInit())
         exit(EXIT_FAILURE);
-    
+
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
-    
+
     win = glfwCreateWindow(width, height, "Simple example", NULL, NULL);
     if (!win)
     {
         glfwTerminate();
         exit(EXIT_FAILURE);
     }
-    
+
     glfwSetKeyCallback(win, key_callback);
-    
+
     glfwSetWindowRefreshCallback(win, window_refresh_callback);
-    
+
     glfwSetWindowCloseCallback(win, window_close_callback);
-    
+
     glfwMakeContextCurrent(win);
     gladLoadGLLoader((GLADloadproc) glfwGetProcAddress);
     glfwSwapInterval(1);
-    
+
     // NOTE: OpenGL error checks have been omitted for brevity
-    
+
     glGenBuffers(1, &vertex_buffer);
     glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
     glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
-    
+
     vertex_shader = glCreateShader(GL_VERTEX_SHADER);
     glShaderSource(vertex_shader, 1, &vertex_shader_text, NULL);
     glCompileShader(vertex_shader);
-    
+
     fragment_shader = glCreateShader(GL_FRAGMENT_SHADER);
     glShaderSource(fragment_shader, 1, &fragment_shader_text, NULL);
     glCompileShader(fragment_shader);
-    
+
     program = glCreateProgram();
     glAttachShader(program, vertex_shader);
     glAttachShader(program, fragment_shader);
     glLinkProgram(program);
-    
+
     mvp_location = glGetUniformLocation(program, "MVP");
     vpos_location = glGetAttribLocation(program, "vPos");
     vcol_location = glGetAttribLocation(program, "vCol");
-    
+
     glEnableVertexAttribArray(vpos_location);
     glVertexAttribPointer(vpos_location, 2, GL_FLOAT, GL_FALSE,
                           sizeof(vertices[0]), (void*) 0);
     glEnableVertexAttribArray(vcol_location);
     glVertexAttribPointer(vcol_location, 3, GL_FLOAT, GL_FALSE,
                           sizeof(vertices[0]), (void*) (sizeof(float) * 2));
-    
 }
-    
+
 static void cocoaGlfwCloseWindow() {
     glfwDestroyWindow(win);
     win = NULL;