diff --git a/upb/mini_table.c b/upb/mini_table.c
index 409022ab35..4cf57d3e99 100644
--- a/upb/mini_table.c
+++ b/upb/mini_table.c
@@ -50,7 +50,7 @@ typedef enum {
   kUpb_EncodedType_Int64 = 9,
   kUpb_EncodedType_UInt64 = 10,
   kUpb_EncodedType_SInt64 = 11,
-  kUpb_EncodedType_Enum = 12,
+  kUpb_EncodedType_OpenEnum = 12,
   kUpb_EncodedType_Bool = 13,
   kUpb_EncodedType_Bytes = 14,
   kUpb_EncodedType_String = 15,
@@ -214,7 +214,7 @@ char* upb_MtDataEncoder_PutField(upb_MtDataEncoder* e, char* ptr,
       [kUpb_FieldType_Message] = kUpb_EncodedType_Message,
       [kUpb_FieldType_Bytes] = kUpb_EncodedType_Bytes,
       [kUpb_FieldType_UInt32] = kUpb_EncodedType_UInt32,
-      [kUpb_FieldType_Enum] = kUpb_EncodedType_Enum,
+      [kUpb_FieldType_Enum] = kUpb_EncodedType_OpenEnum,
       [kUpb_FieldType_SFixed32] = kUpb_EncodedType_SFixed32,
       [kUpb_FieldType_SFixed64] = kUpb_EncodedType_SFixed64,
       [kUpb_FieldType_SInt32] = kUpb_EncodedType_SInt32,
@@ -522,7 +522,7 @@ static void upb_MiniTable_SetField(upb_MtDecoder* d, uint8_t ch,
       [kUpb_EncodedType_String] = kUpb_FieldRep_StringView,
       [kUpb_EncodedType_Bytes] = kUpb_FieldRep_StringView,
       [kUpb_EncodedType_UInt32] = kUpb_FieldRep_4Byte,
-      [kUpb_EncodedType_Enum] = kUpb_FieldRep_4Byte,
+      [kUpb_EncodedType_OpenEnum] = kUpb_FieldRep_4Byte,
       [kUpb_EncodedType_SFixed32] = kUpb_FieldRep_4Byte,
       [kUpb_EncodedType_SFixed64] = kUpb_FieldRep_8Byte,
       [kUpb_EncodedType_SInt32] = kUpb_FieldRep_4Byte,
@@ -544,7 +544,7 @@ static void upb_MiniTable_SetField(upb_MtDecoder* d, uint8_t ch,
       [kUpb_EncodedType_Message] = kUpb_FieldType_Message,
       [kUpb_EncodedType_Bytes] = kUpb_FieldType_Bytes,
       [kUpb_EncodedType_UInt32] = kUpb_FieldType_UInt32,
-      [kUpb_EncodedType_Enum] = kUpb_FieldType_Enum,
+      [kUpb_EncodedType_OpenEnum] = kUpb_FieldType_Enum,
       [kUpb_EncodedType_SFixed32] = kUpb_FieldType_SFixed32,
       [kUpb_EncodedType_SFixed64] = kUpb_FieldType_SFixed64,
       [kUpb_EncodedType_SInt32] = kUpb_FieldType_SInt32,
@@ -579,7 +579,7 @@ static void upb_MiniTable_SetField(upb_MtDecoder* d, uint8_t ch,
     UPB_UNREACHABLE();
   }
   upb_MiniTable_SetTypeAndSub(field, kUpb_EncodedToType[type], sub_count,
-                              msg_modifiers, type == kUpb_EncodedType_Enum);
+                              msg_modifiers, type == kUpb_EncodedType_OpenEnum);
 }
 
 static void upb_MtDecoder_ModifyField(upb_MtDecoder* d,