1 files changed, 3 insertions, 2 deletions
diff --git a/src/redbook/histogram.c b/src/redbook/histogram.c
index c5729e2b..57fa795c 100644
--- a/src/redbook/histogram.c
+++ b/src/redbook/histogram.c
@@ -46,7 +46,7 @@
  *  use of the glHistogram() function.
  */
 
-#include <glad/glad.h>
+#include "glad/gl.h"
 #include "glut_wrap.h"
 #include <assert.h>
 #include <stdlib.h>
@@ -203,11 +203,12 @@ int main(int argc, char** argv)
    glutInitWindowSize(width, height);
    glutInitWindowPosition(100, 100);
    glutCreateWindow(argv[0]);
-   gladLoadGL();
+   gladLoaderLoadGL();
    init();
    glutReshapeFunc(reshape);
    glutKeyboardFunc(keyboard);
    glutDisplayFunc(display);
    glutMainLoop();
+   gladLoaderUnloadGL();
    return 0;
 }