diff --git a/src/libraries/System.Text.RegularExpressions/gen/RegexGenerator.cs b/src/libraries/System.Text.RegularExpressions/gen/RegexGenerator.cs
index ff82d4344aa685..98e3f1ac35c036 100644
--- a/src/libraries/System.Text.RegularExpressions/gen/RegexGenerator.cs
+++ b/src/libraries/System.Text.RegularExpressions/gen/RegexGenerator.cs
@@ -31,9 +31,13 @@ public partial class RegexGenerator : IIncrementalGenerator
         [
             "// <auto-generated/>",
             "#nullable enable",
+#if DEBUG
             "#pragma warning disable CS0162 // Unreachable code",
             "#pragma warning disable CS0164 // Unreferenced label",
             "#pragma warning disable CS0219 // Variable assigned but never used",
+#else
+            "#pragma warning disable",
+#endif
         ];
 
         internal record struct CompilationData(bool AllowUnsafe, bool CheckOverflow, LanguageVersion LanguageVersion);