diff --git a/gax-httpjson/src/main/java/com/google/api/gax/httpjson/HttpJsonStatusCode.java b/gax-httpjson/src/main/java/com/google/api/gax/httpjson/HttpJsonStatusCode.java
index 7ad2df820..7e3f66a09 100644
--- a/gax-httpjson/src/main/java/com/google/api/gax/httpjson/HttpJsonStatusCode.java
+++ b/gax-httpjson/src/main/java/com/google/api/gax/httpjson/HttpJsonStatusCode.java
@@ -60,6 +60,8 @@ public static HttpJsonStatusCode of(StatusCode.Code statusCode) {
   static StatusCode.Code httpStatusToStatusCode(int httpStatus, String errorMessage) {
     String causeMessage = Strings.nullToEmpty(errorMessage).toUpperCase();
     switch (httpStatus) {
+      case 200:
+        return Code.OK;
       case 400:
         if (causeMessage.contains(OUT_OF_RANGE)) {
           return Code.OUT_OF_RANGE;