diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index df7e5314d6e..05457d4a3fe 100644
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -308,6 +308,7 @@ brw_vs_populate_key(struct brw_context *brw,
    key->program_string_id = vp->id;
 
    if (ctx->Transform.ClipPlanesEnabled != 0 &&
+       ctx->API == API_OPENGL_COMPAT &&
        !vp->program.Base.UsesClipDistanceOut) {
       key->nr_userclip_plane_consts =
          _mesa_logbase2(ctx->Transform.ClipPlanesEnabled) + 1;