diff --git a/src/search_intra.c b/src/search_intra.c
index 1021d6de..25cb6e49 100644
--- a/src/search_intra.c
+++ b/src/search_intra.c
@@ -744,8 +744,8 @@ int8_t kvz_search_cu_intra_chroma(encoder_state_t * const state,
   int8_t intra_mode = cur_pu->intra.mode;
 
   double costs[5];
-  int8_t modes[5] = { 0, 26, 10, 1, 34 };
-  if (intra_mode != 0 && intra_mode != 26 && intra_mode != 10 && intra_mode != 1) {
+  int8_t modes[5] = { 0, 50, 18, 1, 66 };
+  if (intra_mode != 0 && intra_mode != 50 && intra_mode != 18 && intra_mode != 1) {
     modes[4] = intra_mode;
   }
 
diff --git a/src/transform.c b/src/transform.c
index 26876efe..2396b49a 100644
--- a/src/transform.c
+++ b/src/transform.c
@@ -361,9 +361,9 @@ static void quantize_tr_residual(encoder_state_t * const state,
                                    coeff);
     if (cfg->implicit_rdpcm && cur_pu->type == CU_INTRA) {
       // implicit rdpcm for horizontal and vertical intra modes
-      if (mode == 10) {
+      if (mode == 18) {
         rdpcm(tr_width, RDPCM_HOR, coeff);
-      } else if (mode == 26) {
+      } else if (mode == 50) {
         rdpcm(tr_width, RDPCM_VER, coeff);
       }
     }