diff --git a/script2.nf b/script2.nf
index 0c9b4e9..927651d 100755
--- a/script2.nf
+++ b/script2.nf
@@ -1,3 +1,4 @@
+nextflow.enable.dsl = 1
 /* 
  * pipeline input parameters 
  */
diff --git a/script3.nf b/script3.nf
index 280bd52..719de26 100755
--- a/script3.nf
+++ b/script3.nf
@@ -1,3 +1,4 @@
+nextflow.enable.dsl = 1
 /* 
  * pipeline input parameters 
  */
diff --git a/script4.nf b/script4.nf
index e3138c1..739836d 100755
--- a/script4.nf
+++ b/script4.nf
@@ -1,3 +1,4 @@
+nextflow.enable.dsl = 1
 /* 
  * pipeline input parameters 
  */
diff --git a/script5.nf b/script5.nf
index 0e83afa..6559260 100755
--- a/script5.nf
+++ b/script5.nf
@@ -1,3 +1,4 @@
+nextflow.enable.dsl = 1
 /* 
  * pipeline input parameters 
  */
diff --git a/script6.nf b/script6.nf
index 9091c42..567b22f 100755
--- a/script6.nf
+++ b/script6.nf
@@ -1,3 +1,4 @@
+nextflow.enable.dsl = 1
 /* 
  * pipeline input parameters 
  */
diff --git a/script7.nf b/script7.nf
index a5932be..8faf87a 100755
--- a/script7.nf
+++ b/script7.nf
@@ -1,3 +1,5 @@
+nextflow.enable.dsl = 1
+
 /* 
  * pipeline input parameters 
  */