diff --git a/src/sonic-yang-models/yang-templates/sonic-types.yang.j2 b/src/sonic-yang-models/yang-templates/sonic-types.yang.j2
index da043fa8761d..29be032e8876 100644
--- a/src/sonic-yang-models/yang-templates/sonic-types.yang.j2
+++ b/src/sonic-yang-models/yang-templates/sonic-types.yang.j2
@@ -136,13 +136,17 @@ module sonic-types {
             enum CR;
             enum CR2;
             enum CR4;
+            enum CR8;
             enum SR;
             enum SR2;
             enum SR4;
+            enum SR8;
             enum LR;
             enum LR4;
+            enum LR8;
             enum KR;
             enum KR4;
+            enum KR8;
             enum CAUI;
             enum GMII;
             enum SFI;