diff --git a/seqfu/1.20.3/Dockerfile b/seqfu/1.20.3/Dockerfile
index 8fcf217c0..64338ca30 100644
--- a/seqfu/1.20.3/Dockerfile
+++ b/seqfu/1.20.3/Dockerfile
@@ -71,8 +71,12 @@ WORKDIR /data
 RUN ls -l /usr/local/bin && \
 seqfu --version && seqfu --help
 
+# Running seqfu on test staph-b test dataset
+FROM app AS test
+
 RUN mkdir tests && cd tests && \
     wget -q https://github.com/StaPH-B/docker-builds/raw/master/tests/SARS-CoV-2/SRR13957123_1.fastq.gz && \
     wget -q https://github.com/StaPH-B/docker-builds/raw/master/tests/SARS-CoV-2/SRR13957123_2.fastq.gz && \
-    seqfu check SRR13957123_1.fastq.gz SRR13957123_2.fastq.gz && \
-    seqfu count -f SRR13957123_1.fastq.gz -r SRR13957123_2.fastq.gz
+    seqfu check SRR13957123_1.fastq.gz SRR13957123_2.fastq.gz > seqfu_check_test.txt && \
+    seqfu count -f SRR13957123_1.fastq.gz -r SRR13957123_2.fastq.gz > seqfu_count_test.txt
+