diff --git a/src/Umbraco.Core/Persistence/Repositories/MediaRepository.cs b/src/Umbraco.Core/Persistence/Repositories/MediaRepository.cs
index 603bef04c8..97981849bc 100644
--- a/src/Umbraco.Core/Persistence/Repositories/MediaRepository.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/MediaRepository.cs
@@ -453,8 +453,16 @@ namespace Umbraco.Core.Persistence.Repositories
             Func<Tuple<string, object[]>> filterCallback = null;
             if (filter.IsNullOrWhiteSpace() == false)
             {
-                sbWhere.Append("AND (umbracoNode." + SqlSyntax.GetQuotedColumnName("text") + " LIKE @" + args.Count + ")");
+                sbWhere
+                    .Append("AND (")
+                    .Append(SqlSyntax.GetQuotedTableName("umbracoNode"))
+                    .Append(".")
+                    .Append(SqlSyntax.GetQuotedColumnName("text"))
+                    .Append(" LIKE @")
+                    .Append(args.Count)
+                    .Append(")");
                 args.Add("%" + filter + "%");
+
                 filterCallback = () => new Tuple<string, object[]>(sbWhere.ToString().Trim(), args.ToArray());
             }
 
diff --git a/src/Umbraco.Core/Persistence/Repositories/MemberRepository.cs b/src/Umbraco.Core/Persistence/Repositories/MemberRepository.cs
index 5253e81a05..f14d66691b 100644
--- a/src/Umbraco.Core/Persistence/Repositories/MemberRepository.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/MemberRepository.cs
@@ -622,9 +622,32 @@ namespace Umbraco.Core.Persistence.Repositories
             Func<Tuple<string, object[]>> filterCallback = null;
             if (filter.IsNullOrWhiteSpace() == false)
             {
-                sbWhere.Append("AND ((umbracoNode. " + SqlSyntax.GetQuotedColumnName("text") + " LIKE @" + args.Count + ") " +
-                                "OR (cmsMember.LoginName LIKE @0" + args.Count + "))");
-                args.Add("%" + filter + "%");
+                //This will build up the where clause - even though the same 'filter' is being
+                //applied to both columns, the parameters values passed to PetaPoco need to be 
+                //duplicated, otherwise it gets confused :/ 
+                var columnFilters = new List<Tuple<string, string>>
+                {
+                    new Tuple<string, string>("umbracoNode", "text"),
+                    new Tuple<string, string>("cmsMember", "LoginName")
+                };
+                sbWhere.Append("AND (");
+                for (int i = 0; i < columnFilters.Count; i++)
+                {
+                    sbWhere
+                        .Append("(")
+                        .Append(SqlSyntax.GetQuotedTableName(columnFilters[i].Item1))
+                        .Append(".")
+                        .Append(SqlSyntax.GetQuotedColumnName(columnFilters[i].Item2))
+                        .Append(" LIKE @")
+                        .Append(args.Count)
+                        .Append(") ");
+                    args.Add(string.Format("%{0}%", filter));
+                    if (i < (columnFilters.Count - 1))
+                    {
+                        sbWhere.Append("OR ");
+                    }
+                }
+                sbWhere.Append(")");
                 filterCallback = () => new Tuple<string, object[]>(sbWhere.ToString().Trim(), args.ToArray());
             }