diff --git a/Src/Newtonsoft.Json.Tests/Linq/JArrayTests.cs b/Src/Newtonsoft.Json.Tests/Linq/JArrayTests.cs
index 2746a738..90e31f31 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/JArrayTests.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/JArrayTests.cs
@@ -471,7 +471,7 @@ Parameter name: index");
             {
                 JArray a = new JArray();
                 a["badvalue"] = new JValue(3);
-            }, @"Set JArray values with invalid key value: ""badvalue"". Array position index expected.");
+            }, @"Set JArray values with invalid key value: ""badvalue"". Int32 array index expected.");
         }
 
         [Test]
diff --git a/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs b/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
index f2934bf3..d2a86f1c 100644
--- a/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
+++ b/Src/Newtonsoft.Json.Tests/Linq/LinqToJsonTest.cs
@@ -925,7 +925,7 @@ keyword such as type of business.""
             {
                 JArray a = new JArray();
                 Assert.AreEqual(null, a["purple"]);
-            }, @"Accessed JArray values with invalid key value: ""purple"". Array position index expected.");
+            }, @"Accessed JArray values with invalid key value: ""purple"". Int32 array index expected.");
         }
 
         [Test]
diff --git a/Src/Newtonsoft.Json/Linq/JArray.cs b/Src/Newtonsoft.Json/Linq/JArray.cs
index ac4fdd30..475b7504 100644
--- a/Src/Newtonsoft.Json/Linq/JArray.cs
+++ b/Src/Newtonsoft.Json/Linq/JArray.cs
@@ -236,7 +236,9 @@ namespace Newtonsoft.Json.Linq
                 ValidationUtils.ArgumentNotNull(key, "o");
 
                 if (!(key is int))
-                    throw new ArgumentException("Accessed JArray values with invalid key value: {0}. Array position index expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
+                {
+                    throw new ArgumentException("Accessed JArray values with invalid key value: {0}. Int32 array index expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
+                }
 
                 return GetItem((int)key);
             }
@@ -245,7 +247,9 @@ namespace Newtonsoft.Json.Linq
                 ValidationUtils.ArgumentNotNull(key, "o");
 
                 if (!(key is int))
-                    throw new ArgumentException("Set JArray values with invalid key value: {0}. Array position index expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
+                {
+                    throw new ArgumentException("Set JArray values with invalid key value: {0}. Int32 array index expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
+                }
 
                 SetItem((int)key, value);
             }