diff --git a/proto/runtime/src/main/kotlin/CodedInputStream.kt b/proto/runtime/src/main/kotlin/CodedInputStream.kt
index be1dde7f777..5474b90fcc4 100644
--- a/proto/runtime/src/main/kotlin/CodedInputStream.kt
+++ b/proto/runtime/src/main/kotlin/CodedInputStream.kt
@@ -86,9 +86,12 @@ class CodedInputStream(val buffer: ByteArray) {
 
     fun readSInt64(expectedFieldNumber: Int): Long {
         val tag = readTag(expectedFieldNumber, WireType.VARINT)
-        return readZigZag64NoTag()
+        return readSInt64NoTag()
     }
 
+    fun readSInt64NoTag(): Long {
+        return readZigZag64NoTag()
+    }
     fun readBytes(expectedFieldNumber: Int): ByteArray {
         val tag = readTag(expectedFieldNumber, WireType.LENGTH_DELIMITED)
         return readBytesNoTag()
diff --git a/proto/runtime/src/main/kotlin/CodedOutputStream.kt b/proto/runtime/src/main/kotlin/CodedOutputStream.kt
index 767f648d8fc..a55d5a9f2c7 100644
--- a/proto/runtime/src/main/kotlin/CodedOutputStream.kt
+++ b/proto/runtime/src/main/kotlin/CodedOutputStream.kt
@@ -26,6 +26,10 @@ class CodedOutputStream(val buffer: ByteArray) {
         writeInt32(fieldNumber, value)
     }
 
+    fun writeUInt32NoTag(value: Int) {
+        writeInt32NoTag(value)
+    }
+
     fun writeInt64(fieldNumber: Int, value: Long) {
         writeTag(fieldNumber, WireType.VARINT)
         writeInt64NoTag(value)
@@ -36,6 +40,10 @@ class CodedOutputStream(val buffer: ByteArray) {
         writeInt64(fieldNumber, value)
     }
 
+    fun writeUInt64NoTag(value: Long) {
+        writeInt64NoTag(value)
+    }
+
     fun writeBool(fieldNumber: Int, value: Boolean) {
         writeTag(fieldNumber, WireType.VARINT)
         writeBoolNoTag(value)