diff --git a/Source/EntityFramework.Extended/Batch/MySqlBatchRunner.cs b/Source/EntityFramework.Extended/Batch/MySqlBatchRunner.cs
index 7b76fd9..7fc94be 100644
--- a/Source/EntityFramework.Extended/Batch/MySqlBatchRunner.cs
+++ b/Source/EntityFramework.Extended/Batch/MySqlBatchRunner.cs
@@ -310,11 +310,11 @@ private int InternalUpdate<TEntity>(ObjectContext objectContext, EntityMap entit
                             parameter.Value = value;
                             updateCommand.Parameters.Add(parameter);
 
-                            sqlBuilder.AppendFormat("{0} = @{1}", columnName, parameterName);
+                            sqlBuilder.AppendFormat("j0.{0} = @{1}", columnName, parameterName);
                         }
                         else
                         {
-                            sqlBuilder.AppendFormat("{0} = NULL", columnName);
+                            sqlBuilder.AppendFormat("j0.{0} = NULL", columnName);
                         }
                     }
                     else
@@ -360,7 +360,7 @@ private int InternalUpdate<TEntity>(ObjectContext objectContext, EntityMap entit
 
                             value = value.Replace(objectParameter.Name, parameterName);
                         }
-                        sqlBuilder.AppendFormat("{0} = {1}", columnName, value);
+                        sqlBuilder.AppendFormat("j0.{0} = {1}", columnName, value);
                     }
                     wroteSet = true;
                 }
diff --git a/Source/EntityFramework.Extended/Batch/SqlServerBatchRunner.cs b/Source/EntityFramework.Extended/Batch/SqlServerBatchRunner.cs
index 8f2fbb0..bfcdab3 100644
--- a/Source/EntityFramework.Extended/Batch/SqlServerBatchRunner.cs
+++ b/Source/EntityFramework.Extended/Batch/SqlServerBatchRunner.cs
@@ -291,11 +291,11 @@ private int InternalUpdate<TEntity>(ObjectContext objectContext, EntityMap entit
                             parameter.Value = value;
                             updateCommand.Parameters.Add(parameter);
 
-                            sqlBuilder.AppendFormat("[{0}] = @{1}", columnName, parameterName);
+                            sqlBuilder.AppendFormat("j0.[{0}] = @{1}", columnName, parameterName);
                         }
                         else
                         {
-                            sqlBuilder.AppendFormat("[{0}] = NULL", columnName);
+                            sqlBuilder.AppendFormat("j0.[{0}] = NULL", columnName);
                         }
                     }
                     else
@@ -341,7 +341,7 @@ private int InternalUpdate<TEntity>(ObjectContext objectContext, EntityMap entit
 
                             value = value.Replace(objectParameter.Name, parameterName);
                         }
-                        sqlBuilder.AppendFormat("[{0}] = {1}", columnName, value);
+                        sqlBuilder.AppendFormat("j0.[{0}] = {1}", columnName, value);
                     }
                     wroteSet = true;
                 }