diff --git a/modules/nextflow/src/main/groovy/nextflow/extension/GroupTupleOp.groovy b/modules/nextflow/src/main/groovy/nextflow/extension/GroupTupleOp.groovy
index 660ae6cf63..7c6279eb7f 100644
--- a/modules/nextflow/src/main/groovy/nextflow/extension/GroupTupleOp.groovy
+++ b/modules/nextflow/src/main/groovy/nextflow/extension/GroupTupleOp.groovy
@@ -35,7 +35,6 @@ class GroupTupleOp {
 
     static private List<Integer> GROUP_DEFAULT_INDEX = [0]
 
-
     /**
      * Comparator used to sort tuple entries (when required)
      */
diff --git a/modules/nextflow/src/main/groovy/nextflow/util/LoggerHelper.groovy b/modules/nextflow/src/main/groovy/nextflow/util/LoggerHelper.groovy
index 9a23cd77fd..aaa1f18a27 100644
--- a/modules/nextflow/src/main/groovy/nextflow/util/LoggerHelper.groovy
+++ b/modules/nextflow/src/main/groovy/nextflow/util/LoggerHelper.groovy
@@ -213,8 +213,8 @@ class LoggerHelper {
             root.addAppender(syslogAppender)
 
         // -- main package logger
-        def mainLevel = packages[MAIN_PACKAGE] == Level.TRACE ? Level.TRACE : Level.DEBUG
-        def logger = createLogger(MAIN_PACKAGE, mainLevel)
+        final mainLevel = packages[MAIN_PACKAGE] == Level.TRACE ? Level.TRACE : Level.DEBUG
+        final logger = createLogger(MAIN_PACKAGE, mainLevel)
 
         // -- set AWS lib level to WARN to reduce noise in the log file
         final AWS = 'com.amazonaws'