diff --git a/tests/script.sh b/tests/script.sh
index 507cbce..f661b12 100755
--- a/tests/script.sh
+++ b/tests/script.sh
@@ -1,7 +1,10 @@
+errors=0
+
 # Check syntax in php files. Use `xargs' over `find -exec' as xargs exits with a value of 1 when any command errors.
 find . -type "f" -iname "*.php" ! -path "*/vendor/*" | xargs -L "1" php -l
-
-errors=0
+if [[ "${?}" -ne 0 ]]; then
+    ((errors++))
+fi
 
 # Run tests.
 phpunit --configuration tests/phpunit.xml