diff --git a/priv/test-for-gh-pr.sh b/priv/test-for-gh-pr.sh
index 55f8a8d..b8e2acf 100755
--- a/priv/test-for-gh-pr.sh
+++ b/priv/test-for-gh-pr.sh
@@ -4,6 +4,7 @@ if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then
 	echo '$TRAVIS_PULL_REQUEST is false, skipping tests'
 	exit 0
 else
-	echo '$TRAVIS_PULL_REQUEST is not false, running tests'
+	echo '$TRAVIS_PULL_REQUEST is not false ($TRAVIS_PULL_REQUEST), running tests'
 	make test
+	make dialyzer
 fi