3 files changed, 4 insertions, 10 deletions
diff --git a/src/mongo/shell/collection.js b/src/mongo/shell/collection.js
index 20522653bc2..bf5aa3a2653 100644
--- a/src/mongo/shell/collection.js
+++ b/src/mongo/shell/collection.js
@@ -1322,9 +1322,7 @@ DBCollection.prototype.getSlaveOk = function() {
     return this.getSecondaryOk();
 };
 
-DBCollection.prototype.setSecondaryOk = function(value) {
-    if (value === undefined)
-        value = true;
+DBCollection.prototype.setSecondaryOk = function(value = true) {
     this._secondaryOk = value;
 };
 
diff --git a/src/mongo/shell/db.js b/src/mongo/shell/db.js
index 477dc95a60c..16c109e9cb4 100644
--- a/src/mongo/shell/db.js
+++ b/src/mongo/shell/db.js
@@ -1244,7 +1244,7 @@ DB.autocomplete = function(obj) {
     return ret;
 };
 
-DB.prototype.setSlaveOk = function(value) {
+DB.prototype.setSlaveOk = function(value = true) {
     print(
         "WARNING: setSlaveOk() is deprecated and may be removed in the next major release. Please use setSecondaryOk() instead.");
     this.setSecondaryOk(value);
@@ -1256,9 +1256,7 @@ DB.prototype.getSlaveOk = function() {
     return this.getSecondaryOk();
 };
 
-DB.prototype.setSecondaryOk = function(value) {
-    if (value == undefined)
-        value = true;
+DB.prototype.setSecondaryOk = function(value = true) {
     this._secondaryOk = value;
 };
 
diff --git a/src/mongo/shell/mongo.js b/src/mongo/shell/mongo.js
index 23a2cf775f1..5beecf5646d 100644
--- a/src/mongo/shell/mongo.js
+++ b/src/mongo/shell/mongo.js
@@ -39,9 +39,7 @@ Mongo.prototype.getSlaveOk = function() {
     return this.getSecondaryOk();
 };
 
-Mongo.prototype.setSecondaryOk = function(value) {
-    if (value == undefined)
-        value = true;
+Mongo.prototype.setSecondaryOk = function(value = true) {
     this.secondaryOk = value;
 };