diff --git a/.teamcity/settings.kts b/.teamcity/settings.kts
index 62b866404..5b01b6ba8 100644
--- a/.teamcity/settings.kts
+++ b/.teamcity/settings.kts
@@ -37,47 +37,40 @@ project {
         checkbox (
             "env.AutoStash",
             label = "AutoStash",
-            value = "True",
             checked = "True",
             unchecked = "False",
             display = ParameterDisplay.NORMAL)
         select (
             "env.Configuration",
             label = "Configuration",
-            value = "Release",
             options = listOf("Debug" to "Debug", "Release" to "Release"),
             display = ParameterDisplay.NORMAL)
         checkbox (
             "env.IgnoreFailedSources",
             label = "IgnoreFailedSources",
             description = "Ignore unreachable sources during Restore",
-            value = "False",
             checked = "True",
             unchecked = "False",
             display = ParameterDisplay.NORMAL)
         checkbox (
             "env.Major",
             label = "Major",
-            value = "False",
             checked = "True",
             unchecked = "False",
             display = ParameterDisplay.NORMAL)
         text (
             "env.SignPathSettings",
             label = "SignPathSettings",
-            value = "",
             allowEmpty = true,
             display = ParameterDisplay.NORMAL)
         text (
             "env.TestDegreeOfParallelism",
             label = "TestDegreeOfParallelism",
-            value = "1",
             allowEmpty = true,
             display = ParameterDisplay.NORMAL)
         checkbox (
             "env.UseHttps",
             label = "UseHttps",
-            value = "False",
             checked = "True",
             unchecked = "False",
             display = ParameterDisplay.NORMAL)
@@ -85,7 +78,6 @@ project {
             "env.Verbosity",
             label = "Verbosity",
             description = "Logging verbosity during build execution. Default is 'Normal'.",
-            value = "Normal",
             options = listOf("Minimal" to "Minimal", "Normal" to "Normal", "Quiet" to "Quiet", "Verbose" to "Verbose"),
             display = ParameterDisplay.NORMAL)
         text(
diff --git a/source/Nuke.Common/CI/TeamCity/Configuration/TeamCityConfigurationParameter.cs b/source/Nuke.Common/CI/TeamCity/Configuration/TeamCityConfigurationParameter.cs
index a17de2830..53cc0e5df 100644
--- a/source/Nuke.Common/CI/TeamCity/Configuration/TeamCityConfigurationParameter.cs
+++ b/source/Nuke.Common/CI/TeamCity/Configuration/TeamCityConfigurationParameter.cs
@@ -33,7 +33,8 @@ public override void Write(CustomFileWriter writer)
             if (Description != null)
                 writer.WriteLine($"description = {Description.DoubleQuote()},");
 
-            writer.WriteLine($"value = {DefaultValue.DoubleQuote()},");
+            if (DefaultValue != null)
+                writer.WriteLine($"value = {DefaultValue.DoubleQuote()},");
 
             if (Type == TeamCityParameterType.Checkbox)
             {
diff --git a/source/Nuke.Common/CI/TeamCity/TeamCityAttribute.cs b/source/Nuke.Common/CI/TeamCity/TeamCityAttribute.cs
index d0a9c59df..a15675db9 100644
--- a/source/Nuke.Common/CI/TeamCity/TeamCityAttribute.cs
+++ b/source/Nuke.Common/CI/TeamCity/TeamCityAttribute.cs
@@ -302,9 +302,6 @@ TeamCityParameterType GetParameterType()
                    Description = attribute.Description,
                    Options = valueSet?.ToDictionary(x => x.Item1, x => x.Item2),
                    Type = GetParameterType(),
-                   DefaultValue = memberType.IsArray && defaultValue is IEnumerable enumerable
-                       ? enumerable.Cast<object>().Select(x => x.ToString()).Join(valueSeparator)
-                       : defaultValue?.ToString(),
                    Display = required ? TeamCityParameterDisplay.Prompt : TeamCityParameterDisplay.Normal,
                    AllowMultiple = memberType.IsArray && valueSet is not null,
                    ValueSeparator = valueSeparator