diff --git a/groovy18-timestamp.patch b/groovy18-timestamp.patch
index e795acf..0669c5c 100644
--- a/groovy18-timestamp.patch
+++ b/groovy18-timestamp.patch
@@ -18,7 +18,7 @@
  public class CompiledAtASTTransformation implements ASTTransformation {
  
 -    private final static compileTime = new Date().toString()
-+    private final static compileTime = (System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date()).toString()
++    private final static compileTime = new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))).toString()
  
      public void visit(ASTNode[] astNodes, SourceUnit sourceUnit) {