diff --git a/src/mesa/SConscript b/src/mesa/SConscript
index 9f7ac5b645f..920b545a89b 100644
--- a/src/mesa/SConscript
+++ b/src/mesa/SConscript
@@ -31,6 +31,7 @@ if env['platform'] == 'windows':
 else:
     env.Append(CPPDEFINES = [
         'IN_DRI_DRIVER', # enable the remap table (for DRI drivers)
+        ('HAVE_DLOPEN', '1'),
     ])
 
 #