diff --git a/src/opengl.c b/src/opengl.c
index 383773b..45f2256 100644
--- a/src/opengl.c
+++ b/src/opengl.c
@@ -940,9 +940,9 @@ int gl_init(void) {
   gl_screen.depth = gl_screen.r + gl_screen.g + gl_screen.b + gl_screen.a;
 
   /* Get info about some extensions. */
-  if(gl_hasExt("GL_ARB_vertex_shader")==GL_TRUE)
+  if(gl_hasExt("GL_ARB_vertex_program")==GL_TRUE)
     gl_screen.flags |= OPENGL_VERT_SHADER;
-  if(gl_hasExt("GL_ARB_fragment_shader")==GL_TRUE)
+  if(gl_hasExt("GL_ARB_fragment_program")==GL_TRUE)
     gl_screen.flags |= OPENGL_FRAG_SHADER;
 
   /* Texture information. */