diff --git a/Jenkinsfile b/Jenkinsfile
index b5a32a1..75ea06d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -57,6 +57,7 @@ pipeline {
 			steps {
 				sh 'cd tools && composer install --ignore-platform-reqs && cd ..'
 				sh 'mkdir -p build/logs'
+				sh 'mkdir -p build/tmp'
 				sh 'touch build/logs/phpstan.log'
 				sh 'composer run-script ci:phpstan'
 				recordIssues(
diff --git a/phpstan.neon b/phpstan.neon
index 36ff6c8..b92bf3e 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -8,6 +8,7 @@ parameters:
 	excludes_analyse:
 		- tests
 		- vendor
+	tmpDir: build/tmp
 	# These are objects that basically can return anything
 	universalObjectCratesClasses:
 		- Aviat\Ion\Friend