diff --git a/tests/test-against-previous-version.sh b/tests/test-against-previous-version.sh
index 48d99124..ed13a460 100755
--- a/tests/test-against-previous-version.sh
+++ b/tests/test-against-previous-version.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-previousVersion="0.3-release"
+previousVersion="0.4-release"
 previousVersionTag=v${previousVersion}
 wget --no-check-certificate https://github.com/mcveanlab/DEploid/archive/${previousVersionTag}.tar.gz -o /dev/null
 tar -xf ${previousVersionTag}.tar.gz
@@ -17,5 +17,20 @@ if [ $? -ne 0 ]; then
 fi
 
 
+echo ${PWD}
+
+
+sameFlags="-exclude data/testData/labStrains.test.exclude.txt -plaf data/testData/labStrains.test.PLAF.txt -noPanel -ibd -seed 1 -ref data/testData/PG0390-C.test.ref -alt data/testData/PG0390-C.test.alt -vcfOut"
+./dEploid ${sameFlags} -o current
+./DEploid-${previousVersion}/dEploid ${sameFlags} -o previous
+
+diff current.prop previous.prop
+if [ $? -ne 0 ]; then
+  echo ""
+  echo "Proportion unequal"
+  exit 1
+fi
+
+
 echo ${PWD}
 rm -r "${previousVersionTag}".tar.gz DEploid-${previousVersion} current* previous*