diff --git a/.github/filters.yml b/.github/filters.yml
index 537d982f..d877045b 100644
--- a/.github/filters.yml
+++ b/.github/filters.yml
@@ -128,6 +128,10 @@ gatk_createsequencedictionary:
   - software/gatk/createsequencedictionary/**
   - tests/software/gatk/createsequencedictionary/**
 
+gatk4_mergevcfs:
+  - software/gatk4/mergevcfs/**
+  - tests/software/gatk4/mergevcfs/**
+
 gffread:
   - software/gffread/**
   - tests/software/gffread/**
diff --git a/tests/software/gatk4/mergevcfs/main.nf b/tests/software/gatk4/mergevcfs/main.nf
index 546fc2bf..bdb0e4b5 100644
--- a/tests/software/gatk4/mergevcfs/main.nf
+++ b/tests/software/gatk4/mergevcfs/main.nf
@@ -9,7 +9,8 @@ workflow test_gatk4_mergevcfs {
     def input = []
     input = [ [ id:'test' ], // meta map
               [ file("${launchDir}/tests/data/vcf/test.vcf", checkIfExists: true),
-                file("${launchDir}/tests/data/vcf/test2.vcf.gz", checkIfExists: true)  ] ]
+                file("${launchDir}/tests/data/vcf/test2.vcf.gz", checkIfExists: true),
+                file("${launchDir}/tests/data/vcf/test3.vcf.gz", checkIfExists: true)  ] ]
 
     GATK4_MERGEVCFS ( input )
 }
diff --git a/tests/software/gatk4/mergevcfs/test.yml b/tests/software/gatk4/mergevcfs/test.yml
index 0e22df2b..c649e011 100644
--- a/tests/software/gatk4/mergevcfs/test.yml
+++ b/tests/software/gatk4/mergevcfs/test.yml
@@ -4,5 +4,5 @@
     - gatk4
     - gatk4_mergevcfs
   files:
-    - path: output/gatk4/test.fastq.gz
-      md5sum: 61c6d3556ac6e0d09d800415b9a48508
+    - path: output/gatk4/test.merged.vcf.gz
+      md5sum: f25850b7bd4d362b5ea67d4453e9df55