diff --git a/.tests/integration/units.tsv b/.tests/integration/units.tsv
index cc8f991..1a3ba94 100644
--- a/.tests/integration/units.tsv
+++ b/.tests/integration/units.tsv
@@ -1,3 +1,3 @@
-sample	platform	barcode	type	flowcell	lane	fastq1	fastq2	adapter
-HD832.HES45	Illumina	AAAA+CCCC	T	1	L001	fastq/HD827sonic_testing1_R1.fastq.gz	fastq/HD827sonic_testing1_R2.fastq.gz	ACGT
-HD832.HES45	Illumina	AAAA+TTTT	R	1	L001	fastq/HD827sonic_testing2_R1.fastq.gz	fastq/HD827sonic_testing2_R2.fastq.gz	ACGT
+sample	platform	barcode	type	machine	flowcell	lane	fastq1	fastq2	adapter
+HD832.HES45	Illumina	AAAA+CCCC	T	NDX550220	1	L001	fastq/HD827sonic_testing1_R1.fastq.gz	fastq/HD827sonic_testing1_R2.fastq.gz	ACGT
+HD832.HES45	Illumina	AAAA+TTTT	R	NDX550220	1	L001	fastq/HD827sonic_testing2_R1.fastq.gz	fastq/HD827sonic_testing2_R2.fastq.gz	ACGT
diff --git a/workflow/rules/common.smk b/workflow/rules/common.smk
index d989a80..4ef5dcf 100644
--- a/workflow/rules/common.smk
+++ b/workflow/rules/common.smk
@@ -40,6 +40,7 @@ validate(units, schema="../schemas/units.schema.yaml")
 
 ### Set wildcard constraints
 
+
 wildcard_constraints:
     sample="|".join(samples.index),
     unit="N|T|R",