diff --git a/Source/Tools/Flax.Build/Utilities/Tokenizer.cs b/Source/Tools/Flax.Build/Utilities/Tokenizer.cs
index e73ddcbca..54ddda833 100644
--- a/Source/Tools/Flax.Build/Utilities/Tokenizer.cs
+++ b/Source/Tools/Flax.Build/Utilities/Tokenizer.cs
@@ -258,7 +258,7 @@ namespace Flax.Build
         (
          @"(?<ws>[ \t]+)|" +
          @"(?<nl>(?:\r\n|\n))|" +
-         @"(?<commul>/\*(?:(?!\*/)(?:.|[\r\n]+))*\*/)|" +
+         @"(?<commul>/\*[^*]*\*+(?:[^/*][^*]*\*+)*/)|" +
          @"(?<comsin>//(.*?)\r?\n)|" +
          @"(?<ident>[a-zA-Z_][a-zA-Z0-9_]*)|" +
          @"(?<hex>0x[0-9a-fA-F]+)|" +