diff --git a/src/EFCore.PG/Query/Internal/NpgsqlQuerySqlGenerator.cs b/src/EFCore.PG/Query/Internal/NpgsqlQuerySqlGenerator.cs
index f08ff4c25..f1b532f02 100644
--- a/src/EFCore.PG/Query/Internal/NpgsqlQuerySqlGenerator.cs
+++ b/src/EFCore.PG/Query/Internal/NpgsqlQuerySqlGenerator.cs
@@ -1,3 +1,4 @@
+using System.Collections;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Text.RegularExpressions;
@@ -90,6 +91,8 @@ protected override string GetOperator(SqlBinaryExpression e)
             // string type mapping. Same for full-text search's TsVector.
             ExpressionType.Add when
                 e.Type == typeof(string) || e.Left.TypeMapping?.ClrType == typeof(string) || e.Right.TypeMapping?.ClrType == typeof(string) ||
+                e.Type == typeof(BitArray) || e.Left.TypeMapping?.ClrType == typeof(BitArray) || e.Right.TypeMapping?.ClrType == typeof(BitArray) ||
+                e.Type == typeof(byte[]) || e.Left.TypeMapping?.ClrType == typeof(byte[]) || e.Right.TypeMapping?.ClrType == typeof(byte[]) ||
                 e.Type == typeof(NpgsqlTsVector) || e.Left.TypeMapping?.ClrType == typeof(NpgsqlTsVector) || e.Right.TypeMapping?.ClrType == typeof(NpgsqlTsVector)
                 => " || ",
             ExpressionType.And when e.Type == typeof(bool)   => " AND ",
@@ -742,4 +745,4 @@ public virtual Expression VisitPgFunction(PostgresFunctionExpression e)
 
     private static bool RequiresBrackets(SqlExpression expression)
         => expression is SqlBinaryExpression || expression is LikeExpression || expression is PostgresBinaryExpression;
-}
\ No newline at end of file
+}