diff --git a/app.cc b/app.cc
index e96fdf2..e71c095 100644
--- a/app.cc
+++ b/app.cc
@@ -132,7 +132,7 @@ static void draw_cube()
     glUniform1i(uniforms.tex, 0);
     glUniformMatrix4fv(uniforms.projection, 1, GL_FALSE, &projection[0][0]);
 
-    for (int i = 0; i < sizeof(rotations) / sizeof(rotations[0]); i++)
+    for (unsigned int i = 0; i < sizeof(rotations) / sizeof(rotations[0]); i++)
     {
         if (rotations[i].counts > 0)
         {
@@ -194,7 +194,7 @@ int main(int argc, char *argv[])
         return 2;
     }
 
-    SDL_GLContext gl_context = SDL_GL_CreateContext(window);
+    (void)SDL_GL_CreateContext(window);
 
     if (gl3wInit())
     {