diff --git a/src/EFCore.Design/Migrations/Design/CSharpMigrationOperationGenerator.cs b/src/EFCore.Design/Migrations/Design/CSharpMigrationOperationGenerator.cs
index f7f702e97c0..f35a089e6d1 100644
--- a/src/EFCore.Design/Migrations/Design/CSharpMigrationOperationGenerator.cs
+++ b/src/EFCore.Design/Migrations/Design/CSharpMigrationOperationGenerator.cs
@@ -1805,11 +1805,14 @@ protected virtual void Generate(RestartSequenceOperation operation, IndentedStri
                     .Append(Code.Literal(operation.Schema));
             }
 
-            builder
-                .AppendLine(",")
-                .Append("startValue: ")
-                .Append(Code.Literal(operation.StartValue))
-                .Append(")");
+            if (operation.StartValue.HasValue)
+            {
+                builder
+                    .AppendLine(",")
+                    .Append("startValue: ")
+                    .Append(Code.Literal(operation.StartValue))
+                    .Append(")");
+            }
 
             Annotations(operation.GetAnnotations(), builder);
         }
diff --git a/src/EFCore.Relational/Migrations/MigrationBuilder.cs b/src/EFCore.Relational/Migrations/MigrationBuilder.cs
index a22d60f3403..e418a750c43 100644
--- a/src/EFCore.Relational/Migrations/MigrationBuilder.cs
+++ b/src/EFCore.Relational/Migrations/MigrationBuilder.cs
@@ -1238,7 +1238,7 @@ public virtual OperationBuilder<RenameTableOperation> RenameTable(
     /// <returns>A builder to allow annotations to be added to the operation.</returns>
     public virtual OperationBuilder<RestartSequenceOperation> RestartSequence(
         string name,
-        long startValue = 1L,
+        long? startValue = null,
         string? schema = null)
     {
         Check.NotEmpty(name, nameof(name));
diff --git a/src/EFCore.Relational/Migrations/MigrationsSqlGenerator.cs b/src/EFCore.Relational/Migrations/MigrationsSqlGenerator.cs
index d3bd0f1f72f..ea675ea60d7 100644
--- a/src/EFCore.Relational/Migrations/MigrationsSqlGenerator.cs
+++ b/src/EFCore.Relational/Migrations/MigrationsSqlGenerator.cs
@@ -793,9 +793,14 @@ protected virtual void Generate(
 
         builder
             .Append("ALTER SEQUENCE ")
-            .Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Name, operation.Schema))
-            .Append(" RESTART WITH ")
-            .Append(longTypeMapping.GenerateSqlLiteral(operation.StartValue))
+            .Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Name, operation.Schema));
+        if (operation.StartValue.HasValue)
+        {
+            builder
+                .Append(" RESTART WITH ")
+                .Append(longTypeMapping.GenerateSqlLiteral(operation.StartValue));
+        }
+        builder
             .AppendLine(Dependencies.SqlGenerationHelper.StatementTerminator);
 
         EndStatement(builder);
diff --git a/src/EFCore.Relational/Migrations/Operations/RestartSequenceOperation.cs b/src/EFCore.Relational/Migrations/Operations/RestartSequenceOperation.cs
index af2fb650b3c..8ff05f69289 100644
--- a/src/EFCore.Relational/Migrations/Operations/RestartSequenceOperation.cs
+++ b/src/EFCore.Relational/Migrations/Operations/RestartSequenceOperation.cs
@@ -23,7 +23,7 @@ public class RestartSequenceOperation : MigrationOperation
     public virtual string? Schema { get; set; }
 
     /// <summary>
-    ///     The value at which the sequence should re-start, defaulting to 1.
+    ///     The value at which the sequence should re-start, of <see langword="null" /> if the start value should not be specified .
     /// </summary>
-    public virtual long StartValue { get; set; } = 1L;
+    public virtual long? StartValue { get; set; } = 1L;
 }
diff --git a/src/EFCore.SqlServer/Migrations/SqlServerMigrationsSqlGenerator.cs b/src/EFCore.SqlServer/Migrations/SqlServerMigrationsSqlGenerator.cs
index 5ad499c5698..49460a11383 100644
--- a/src/EFCore.SqlServer/Migrations/SqlServerMigrationsSqlGenerator.cs
+++ b/src/EFCore.SqlServer/Migrations/SqlServerMigrationsSqlGenerator.cs
@@ -540,9 +540,14 @@ protected override void Generate(
     {
         builder
             .Append("ALTER SEQUENCE ")
-            .Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Name, operation.Schema))
-            .Append(" RESTART WITH ")
-            .Append(IntegerConstant(operation.StartValue))
+            .Append(Dependencies.SqlGenerationHelper.DelimitIdentifier(operation.Name, operation.Schema));
+        if (operation.StartValue.HasValue)
+        {
+            builder
+                .Append(" RESTART WITH ")
+                .Append(IntegerConstant(operation.StartValue.Value));
+        }
+        builder
             .AppendLine(Dependencies.SqlGenerationHelper.StatementTerminator);
 
         EndStatement(builder);