diff --git a/ChangeLog.md b/ChangeLog.md
index bb697c7e16..520fc72151 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix formatting of argument list ([#952](https://github.com/josefpihrt/roslynator/pull/952).
 - Do not remove async/await when 'using declaration' is used ([#953](https://github.com/josefpihrt/roslynator/pull/953).
 - Convert if-else to return statement when pattern matching is used ([RCS1073](https://github.com/JosefPihrt/Roslynator/blob/main/docs/analyzers/RCS1073.md)) ([#956](https://github.com/josefpihrt/roslynator/pull/956).
+- [CLI] Include compiler diagnostics in the xml output file of the `roslynator analyze` command ([#964](https://github.com/JosefPihrt/Roslynator/pull/964) by @PeterKaszab).
 - Do not simplify 'default' expression if the type is inferred ([RCS1244](https://github.com/JosefPihrt/Roslynator/blob/main/docs/analyzers/RCS1244.md)) ([#966](https://github.com/josefpihrt/roslynator/pull/966).
 - Use explicit type from lambda expression ([RCS1008](https://github.com/JosefPihrt/Roslynator/blob/main/docs/analyzers/RCS1008.md)) ([#967](https://github.com/josefpihrt/roslynator/pull/967).
 
diff --git a/src/CommandLine/Xml/DiagnosticXmlSerializer.cs b/src/CommandLine/Xml/DiagnosticXmlSerializer.cs
index 530e6922e9..19b9ca8a00 100644
--- a/src/CommandLine/Xml/DiagnosticXmlSerializer.cs
+++ b/src/CommandLine/Xml/DiagnosticXmlSerializer.cs
@@ -23,7 +23,7 @@ public static void Serialize(
             XElement summary = CreateSummary(results.SelectMany(f => f.CompilerDiagnostics.Concat(f.Diagnostics)), formatProvider);
 
             IEnumerable<XElement> projectElements = results
-                .Where(f => f.Diagnostics.Any())
+                .Where(f => f.Diagnostics.Any() || f.CompilerDiagnostics.Any())
                 .OrderBy(f => f.Project.FilePath, FileSystemHelpers.Comparer)
                 .Select(result => SerializeProjectAnalysisResult(result, formatProvider));
 
@@ -41,6 +41,7 @@ private static XElement SerializeProjectAnalysisResult(
                 new XElement(
                     "Diagnostics",
                     result.Diagnostics
+                        .Concat(result.CompilerDiagnostics)
                         .OrderBy(f => f.LineSpan.Path)
                         .ThenBy(f => f.Descriptor.Id)
                         .ThenBy(f => f.LineSpan.StartLinePosition.Line)