diff --git a/configs/default b/configs/default
index 72176f17a7f..b162287b352 100644
--- a/configs/default
+++ b/configs/default
@@ -63,7 +63,7 @@ SRC_DIRS = mesa glu glut/glx glw
 GLU_DIRS = sgi
 DRIVER_DIRS = x11 osmesa
 # Which subdirs under $(TOP)/progs/ to enter:
-PROGRAM_DIRS = demos redbook samples xdemos
+PROGRAM_DIRS = demos redbook samples glsl xdemos
 
 
 # Library/program dependencies