diff --git a/progs/egl/demo3.c b/progs/egl/demo3.c
index e9d2180bf07..6ea75787931 100644
--- a/progs/egl/demo3.c
+++ b/progs/egl/demo3.c
@@ -3,6 +3,7 @@
  */
 
 #include <GLES/egl.h>
+#include <GL/gl.h>
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>