diff --git a/tests/modules/gatk4/cnnscorevariants/test.yml b/tests/modules/gatk4/cnnscorevariants/test.yml
index 1c25e4d0..cc342bc2 100644
--- a/tests/modules/gatk4/cnnscorevariants/test.yml
+++ b/tests/modules/gatk4/cnnscorevariants/test.yml
@@ -4,5 +4,5 @@
     - gatk4
     - gatk4/cnnscorevariants
   files:
-    - path: output/gatk4/test.vcf
+    - path: output/gatk4/test.vcf.gz
       contains: '##ALT=<ID=NON_REF,Description="Represents any possible alternative allele not already represented at this location by REF and ALT">'