diff --git a/src/gallium/drivers/r600/sfn/sfn_instr.h b/src/gallium/drivers/r600/sfn/sfn_instr.h
index 415b0b5ce86..6304a067c58 100644
--- a/src/gallium/drivers/r600/sfn/sfn_instr.h
+++ b/src/gallium/drivers/r600/sfn/sfn_instr.h
@@ -137,6 +137,8 @@ public:
    };
    const InstrList& required_instr() const { return m_required_instr; }
 
+   virtual AluGroup *as_alu_group() { return nullptr;}
+
 protected:
 
 
diff --git a/src/gallium/drivers/r600/sfn/sfn_instr_alugroup.h b/src/gallium/drivers/r600/sfn/sfn_instr_alugroup.h
index 87194862602..d231acfa91a 100644
--- a/src/gallium/drivers/r600/sfn/sfn_instr_alugroup.h
+++ b/src/gallium/drivers/r600/sfn/sfn_instr_alugroup.h
@@ -98,6 +98,8 @@ public:
 
    void set_origin(AluInstr *o) { m_origin = o;}
 
+   AluGroup *as_alu_group() override { return this;}
+
 private:
    void forward_set_blockid(int id, int index) override;
    bool do_ready() const override;