diff --git a/aom_dsp/quantize.h b/aom_dsp/quantize.h
index 45ed678..67e3b5e 100644
--- a/aom_dsp/quantize.h
+++ b/aom_dsp/quantize.h
@@ -30,6 +30,13 @@
                            tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
                            const int16_t dequant_ptr, uint16_t *eob_ptr,
                            const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr);
+#if CONFIG_TX64X64
+void aom_quantize_dc_64x64(const tran_low_t *coeff_ptr, int skip_block,
+                           const int16_t *round_ptr, const int16_t quant_ptr,
+                           tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                           const int16_t dequant_ptr, uint16_t *eob_ptr,
+                           const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr);
+#endif  // CONFIG_TX64X64
 void aom_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
                       int skip_block, const int16_t *zbin_ptr,
                       const int16_t *round_ptr, const int16_t *quant_ptr,
@@ -50,6 +57,13 @@
     const int16_t quant_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
     const int16_t dequant_ptr, uint16_t *eob_ptr, const qm_val_t *qm_ptr,
     const qm_val_t *iqm_ptr);
+#if CONFIG_TX64X64
+void aom_highbd_quantize_dc_64x64(
+    const tran_low_t *coeff_ptr, int skip_block, const int16_t *round_ptr,
+    const int16_t quant_ptr, tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+    const int16_t dequant_ptr, uint16_t *eob_ptr, const qm_val_t *qm_ptr,
+    const qm_val_t *iqm_ptr);
+#endif  // CONFIG_TX64X64
 void aom_highbd_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
                              int skip_block, const int16_t *zbin_ptr,
                              const int16_t *round_ptr, const int16_t *quant_ptr,
@@ -58,8 +72,10 @@
                              const int16_t *dequant_ptr, uint16_t *eob_ptr,
                              const int16_t *scan, const int16_t *iscan,
                              const qm_val_t *qm_ptr, const qm_val_t *iqm_ptr);
-#endif
-#else
+#endif  // CONFIG_AOM_HIGHBITDEPTH
+
+#else  // CONFIG_AOM_QM
+
 void aom_quantize_dc(const tran_low_t *coeff_ptr, int n_coeffs, int skip_block,
                      const int16_t *round_ptr, const int16_t quant_ptr,
                      tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
@@ -68,7 +84,12 @@
                            const int16_t *round_ptr, const int16_t quant_ptr,
                            tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
                            const int16_t dequant_ptr, uint16_t *eob_ptr);
-
+#if CONFIG_TX64X64
+void aom_quantize_dc_64x64(const tran_low_t *coeff_ptr, int skip_block,
+                           const int16_t *round_ptr, const int16_t quant_ptr,
+                           tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                           const int16_t dequant_ptr, uint16_t *eob_ptr);
+#endif  // CONFIG_TX64X64
 #if CONFIG_AOM_HIGHBITDEPTH
 void aom_highbd_quantize_dc(const tran_low_t *coeff_ptr, int n_coeffs,
                             int skip_block, const int16_t *round_ptr,
@@ -81,8 +102,16 @@
                                   tran_low_t *qcoeff_ptr,
                                   tran_low_t *dqcoeff_ptr,
                                   const int16_t dequant_ptr, uint16_t *eob_ptr);
-#endif
-#endif
+#if CONFIG_TX64X64
+void aom_highbd_quantize_dc_64x64(const tran_low_t *coeff_ptr, int skip_block,
+                                  const int16_t *round_ptr,
+                                  const int16_t quant_ptr,
+                                  tran_low_t *qcoeff_ptr,
+                                  tran_low_t *dqcoeff_ptr,
+                                  const int16_t dequant_ptr, uint16_t *eob_ptr);
+#endif  // CONFIG_TX64X64
+#endif  // CONFIG_AOM_HIGHBITDEPTH
+#endif  // CONFIG_AOM_QM
 
 #ifdef __cplusplus
 }  // extern "C"