diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 45b75cb2f70..8d98b0d30ab 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1177,16 +1177,21 @@ fs_visitor::emit_general_interpolation(ir_variable *ir)
                   emit(FS_OPCODE_MOV_DISPATCH_TO_FLAGS);
 
                   fs_inst *inst;
+                  inst = emit_linterp(attr, fs_reg(interp), interpolation_mode,
+                                      false, false);
+                  inst->predicate = BRW_PREDICATE_NORMAL;
+                  inst->predicate_inverse = true;
+                  if (brw->has_pln)
+                     inst->no_dd_clear = true;
+
                   inst = emit_linterp(attr, fs_reg(interp), interpolation_mode,
                                       ir->data.centroid && !key->persample_shading,
                                       ir->data.sample || key->persample_shading);
                   inst->predicate = BRW_PREDICATE_NORMAL;
                   inst->predicate_inverse = false;
+                  if (brw->has_pln)
+                     inst->no_dd_check = true;
 
-                  inst = emit_linterp(attr, fs_reg(interp), interpolation_mode,
-                                      false, false);
-                  inst->predicate = BRW_PREDICATE_NORMAL;
-                  inst->predicate_inverse = true;
                } else {
                   emit_linterp(attr, fs_reg(interp), interpolation_mode,
                                ir->data.centroid && !key->persample_shading,